Calculate Future Value Of Monthly Recurring, Annually Increasing Payments
Sep 19, 2007
follows in paragraph 5 - but first, background!
I have a specific formula (received courtesy of some clever person here at Ozgrid (thanks!)) which I use to calculate the Future Value of a series of future payments that increase at a fixed annual rate and earn interest at a fixed rate.
Here it is: =Pmt1* SUMPRODUCT((1+Increase_in_payment)^(ROW( OFFSET($A$1,0,0,Term,1))-1),(1+Return_on_investment)^(Term-ROW(OFFSET($A$1,0,0,Term,1))+1))
(Example: $1000 per annum (Pmt1) is invested for 20 years (Term). The interest earned on the $1000 is 10% per annum (Return_on_investment). The $1000 increases by 5% (Increase_in_payment) each year - i.e. 19 increases - answer: $89,632 (rounded))
This formula assumes that the payment is made at the beginning of the period.
Question: I would like to change the formula to use MONTHLY payments made in advance, and interest earned on a monthly basis.
Because I REALLY do not know what the formula does, maybe I could ask for a detailed explanation thereof - maybe even from the person who supplied it to me (I cannot see who did!) - and then I can start fiddling with it myself if answers do not come.
Two previous posts of mine that dealt with somewhat different issues on the same formula are:
Does anyone know a formula that calculates the future value of an unequal payment stream? I am attempting to calculate the value of an investment plan where the periodic payment increases by 1% each period. I can get the answer by using the FV formula for each payment and then adding them up, but would like to be able to do it without having to do so.
I have created an monthly budget spreadsheet on excel with a calendar. Formula to show the recurring expenses in the calendar? (Example: Rent/Mortgage on the 1st of every month).
I need a series of cells to increase by varying amounts after each month, however this needs to happen automatically so if I send the spreadsheet to someone else, it will update for them automatically. I'm hoping that I can set up a function that will ONLY increase the cells after 4 weeks after they select a date from ANOTHER drop down menu (i.e they select the starting date from cell A1 - then input their starting numbers into other cells which then increase on that same date, 4 weeks later).
The cells that need to increase already have a formula in them as well; as this number is their predicted 1RM based off formulas in other cells.
Coloumn A contains dates format of 12/02/2009, but another format such as 10-Apr-09 etc could be used.
Coloumn B contains the amounts of payments received, i.e £5.00, £10.00, £20.00
Now what I require is to be display in another coloumn (say Coloumn C) the number of payments that were received last week and last month and then the total value of the payments.
So the sort of result I'm looking for would be like
Assume todays date is 19-04-09
A B C 12-04-09 £5.00 Last Week 4 Payments Value £45.00 12-04-09 £10.00 13-04-09 £10.00 14-04-09 £20.00
I have a spreadsheet representing a month where I am trying to figure out different scenarios for employees. One scenario is that an employee could have to move to a temporary position. In that case, I need to calculate the salary payments to temporary employees in a particular work unit. I've tried several different approaches to this problem, but am still getting the error.
One method has been using this sumproduct formula:
I am trying to create a spreadsheet that will automatically calculate a date in the future.
The future date calculated needs to take the time NOW (as the user completes a field) and determines if this is before MIDNIGHT on the following SUNDAY. If so it calculates the date as a Tuesday 2 weeks on. For example... I request a date now on 1st Jan which is a Thursday. This is before midnight Sunday and so the date calculated would be Tuesday 20th January.
If the time NOW is after MIDNIGHT Sunday and before the next TUESDAY.. ie 0001hrs on the Monday and 2359hrs on the Monday then the date returned should be Tuesday 3 weeks on.. e.g 27th.
It would also need a function that would allow the total number of referrals on a Tuesday to 20 at which point it would overspill and provide a date on the Friday of the same week.. so in the first example it would be Friday 23rd
Is this something that can be achieved with formulas and a set of dates for it to calculate from or do I need to find someone who can do it in VBA for me.
I am working on a sheet right now where I want to put the day a certain number of days in the future but I want to skip only Holidays, or days in a list on another part of the sheet, but count the weekend days.
All the formulas and post I have read is about someone wanting to skip weekends too. I did find a workdays formula where you and pick what you want to be considered as the weekend but I just want to skip holidays.
Example: Day is Dec-31-2013 7 days in the future is Jan-7-2014 I want it to be since Jan 1 is a Holiday the answer will be Jan-8-2014
I've written the following code. It calculates the future value of required minimum distributions for traditional IRAs. When I enter the function in excel, it drops the last argument. I've tried changing the order of the arguments, and it always drops the last one. The arguments are : marginalTax (marginal tax rate), r (expected return on investment), t (time), begAge (beginning age), RDT (as range -- required distribution table; looks up the percentage required at each age), IRAValueat70 (calcualtes the value of the IRA at 70 years of age)
Function RMD(r As Double, marginalTax As Double, begAge As Integer, t As Integer, RDT As Range, IRAValueat70 As Long) age = begAge endAge = begAge + t Dim holder As Long Dim RMDnow As Long Dim RMDall As Long hat = 70 If endAge < 69 Then Else If begAge <= 69 Then Do While hat < (endAge) RMDnow = (IRAValue / (Application.VLookup(age, RDT, 2, False))) RMDnow = (1 - marginalTax) * RMDnow...........................
I am using the same structure to update another column, under the same sub:
If Target.Column = 5 Then '
Select Case Range("d69").Value Case "CB1W" ActiveCell.Value = DateAdd("ww", 1, Now()) Case "CB2W" ActiveCell.Value = DateAdd("ww", 2, Now()) Case "CB3W" ActiveCell.Value = DateAdd("d", 21, Now()) Case "CB4W" ActiveCell.Value = DateAdd("d", 28, Now()) Case "CB5W" ActiveCell.Value = DateAdd("d", 35, Now()) Case "NI" ActiveCell.Value = "" Case Else ActiveCell.Value = "" End Select
I would like to apply the code to the whole column but if I change Select Case Range("d69").Value to Select Case Range("d2:1000").Value I get a Type Mismatch Error (13) - (on Case "CB1W" ) - column d cells are data validation drop down boxes that get their value form a named ranged :Lead_Status. The column is also formatted as Text. (I applied the code to d69 because I have data already in the other cells which I don't want altered till I have the code working)
I would also greatly appreciate your advice on how to incorporate the WEEKDAY function to exclude weekends for the DateAdd function.
I want to calculate a date that is 28 days in the future. I don't want to exclude any days - However - if the end date falls on a weekend or holiday, I would like to push it out to the next business day.
I currently have the weekends covered, but am stumped on the holidays.
(For weekends, I am using the WEEKDAY function on a hidden sheet, and then the following 3 IF statements: IF today + 28 = Mon.-Fri., then give me today + 28. IF today + 28 = Sat., then give me today + 30. IF today + 28=Sun., then give me today + 29.
I have tried adding an additional IF statement to address a specific holiday - namely, President's Day on 2/18/08, which is a Monday - but it won't add the extra day, because I think my initial IF statement re: Monday being today + 28 is overriding it.
Sometimes my due dates need to be on the 15th of the month, for which DLL and Donkey gave me: =DATE(YEAR(TODAY()), MONTH(TODAY()) + (DAY(TODAY()) > 15), 15)
This works great except sometimes the 15th is on a Sunday which means I need the result to be the 13th, and sometimes it's on a Saturday which means I need the result to be the 14th. FYI: I am a n00b..
I am trying to put together a spreadhseet that will calculate the future cost of education fee assuming a given inflation rate. I would like the reuslt to be highlihted in a list or a table. The user would only need input current fee, inflation rate and years where fees are payable. The spreadsheet would do the rest. I have laid this our best I can attached.
I need to determine a formula which will allow me to calculate a future date based upon a current date with varying time periods.
For example:
I have a bill which is paid on the 15th and last business day of each month. I would like to be able to see the next due date regardless of what day of the week it is.
I have a bill which is paid every other Tuesday. I would like to know the next due date without having to enter +14 for every due date in the future. In other words, it is preferable to be able to open the spreadsheet and automatically see the next due date, not use autofill to repeatedly add +14 to a previous date which would limit the # of future due dates that could be calculated.
I have a bill which is paid on the last business day of each month, not the last Friday of each month. I would need excel to return a value for the last day of the month which = Monday-Friday, regardless of what day of the week it may be as long as it isn't Saturday or Sunday(holiday exclusion would be nice but not required).
I have table and need to take out montly total for each worker...
Now... Each hours in day have own factor. (I need total hours per day but for illustration)...
So when worker works day shift from 8:00 to 16:00 it's easy... 8 hours When works from 8:00 to 20:00 it's 8 hours + 4 afternoon hours When works from 20:00 to 8:00 it's 2 afternnoon hours + 8 night hours + 2 day hours
Aditional problem is when day intercept holliday or sunday when that factors need to be included (if holliday is at sunday then it's like holliday).
Here is some attachment:
Book1.xls
I've also added last day of previous month and first day of next month because of night shifts than need to be calulcated. Therefore correct number of hours is 168 and not 188.
Below I calculated manually those numbers wich I want to be automated...
Also.. This is table I get.. If it's easier to make it somehow else, OK by me. And any number of aditional columns is not problem...
I am trying co Calculate number of nights between to dates for example 10/26/2012 -- 11/25/2013 in a period that can be greater than the month Period. for example. some One checked in on October 24, 2013 and they will checkout on december 17, 2013. in the monthly Period of 10/26/2012 -- 11/25/2013, I am trying to calculate, the monthly nights of that period itself, and the number of days he was checked in on that period.
I am trying to keep a running total of cost, here is what I am doing
A B C D E F G H I
Date Books Pencils tax Month Books Pencils Tax Total 1/2/2014 11.50 2.50 .76 January 35.85 13.50 3.44 52.79 1/5/2014 14.50 3.85 .83 February 10.95 1.50 .68 13.13 1/6/2014 9.85 7.15 1.85 2/6/2014 10.95 1.50 .68
I only used Jan and Feb as an example. So as you see on the right side I will have all 12 months for the year and I just want all the totals for each month to auto calculate. I will have between 15 and 30 entries each month.
I am working on a depreciation schedule in which I want the monthly depreciation of an asset to automatically calculate and, if the asset is fully depreciation, caclulate a zero or the balance to be depreciation (if less than the monthly depreciation). Please see below example. As you can see my asset is fully depreciated at the end of February but because there remains a $0.01, the formula is calculating another month in March and then reversing it in April (less the $0.01). Here's the formula I'm using. What am I doing wrong?
Column H is March, Column C is my monthly depreciation, and column E is my beginning book value:
I need to calculate the monthly repayments on a loan taken out over a certain amount of years, which I can do fine.
I just cant get my head around how to calculate monthly repayments over a certain amount of years when the intrest is compounding annualy.
What I have so far:
p*(1+(r/100))^n Where p is value of original loan, r is annual intrest rate, n is amount of years, and I am hoping I am right in saying this is the total repayable amount of the loan?
Then putting that aside I created a amortization table. (which I am certain i forgot to include compound intrest in!)
To keep it short i followed this guide for the amortization table.
and now I am so confused about if I should be using PMT, PPMT, NPER?!
I feel pretty dumb asking a basic math question but I couldn't find the answer anywhere. I would like to calculate the monthly & annual returns of a security or index. When trying to calculate various indexes to insure my math was correct, my numbers never match that of yahoo or bloomberg's. If you could just start me down the path,
I've daily data of a stock indices returns and I would like to calculate the monthly standard deviation. Currently, I'm using the following worksheet functions: =STDEVP(C2:C20)*SQRT(COUNT(C2:C20))
However, the range changes from month to month, which makes the process of calculating the monthly standard deviation to be quite tedious if I've about 10 years worth of data. I assume I could somehow substitute the range with a dynamic range, but I'm struggling to come up with the correct formulation that would do that.
I receive monthly expenditure returns from different departments which I have to consolidate. The problem I'm encountering is that some departments submit their data as a monthly figure and some as the cumulative position. It would be useful if I had a formula that identified what data type was submitted and from that calculate both the monthly and cumulative figure.
If you look at the attached example I'd like to input a formula in columns I and J that uses the data contained in columns B to E to calculate the monthly and cumulative expenditure figures.
I have a model that makes projections based on annual growth rates. However, I need to evaluate the data based on monthly intervals. With an 8% return on an investment of $1,000,000 my ending balance at the end of the year should be $1,080,000 and in year 2 it would be $1,166,400 and so on. In order to evaluate the monthly data I need each month in year 1 to be based off $1,000,000, so it would be 8%/12=.006666% or $6,666.66 per month. The next year would be based off $1,000,000 + (6,666.66*12) = $1,080,000 and each month would be $7,200.
I have a table of yearly totals for the amount spent by x. I also have a growth rate for each month so for example in 2001 in jan the growth rate might have been 0.3% and feb 0.5% What I want to do is for each month based on the growth rate and the total produce a value for each month which sum to the total amount. It's also important to note that it restarts each year.
I’m currently pulling data into two columns labeled “Monthly” & “Non-Monthly” respectively. They indicate work orders with a frequency of “Monthly” or “Non-Monthly”
The Monthly data is obtained using the following formula:....
