# Auto-updating Formula For Week Over Week Change?

Dec 11, 2013
I was wondering if there's a way to add a formula to calculate week over week % change automatically every week when I enter in new data. see the attached excel file for reference.

What I would like to have is the ability for the formulas in c5 and f5 to be able to auto-update to the newest week and the previous week's data instead of manually having to update it each week. So if I were to add a new row with data for week beginning 12/2, the formula in c5 and f5 would automatically update to calculate the week over week variance. I tried researching prior to asking the question on this forum, and I think it may be possible to do it using the index match function, but I'm not sure how to apply it in this case.

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Jan 19, 2010

I am new to VBA & not sure of the full understanding of code copied from a workbook which worked on the same principle but with Monthly (12) tabs. I thought if modified to show weeks, the macro would be able to locate the current week tab & day/date within - but upon opening, the cell stops at WK19 & column O - rather than WK43, Column N (which changes daily).

Sub Auto_Open()

week(1) = "WK1"

week(2) = "WK2"

week(3) = "WK3"

week(4) = "WK4"

week(5) = "WK5"

week(6) = "WK6"

week(7) = "WK7"

week(8) = "WK8"

week(9) = "WK9"

week(10) = "WK10"

week(11) = "WK11"

week(12) = "WK12"

week(13) = "WK13"

week(14) = "WK14"

week(15) = "WK15"

week(16) = "WK16"

week(17) = "WK17"

week(18) = "WK18"

week(19) = "WK19"

week(20) = "WK20"

week(21) = "WK21"

week(22) = "WK22"

week(23) = "WK23"

week(24) = "WK24"......................................

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Jun 16, 2014

I'm trying to write a formula that will tell me when its week one or week two, week three and week 4 based on a given date of any month.

I'm using weekday formula but no luck.

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Aug 6, 2008

I have a comparison model that looks at two weeks of data. I am trying to get around the deletion and insertion of records week on week. With the code below, I can currently find and correct the deletions and insertions to the list, and then resort the list so that the comparison will work.

Sub CheckForNewProjsRemovedProjects()

Dim MyCell As Range, oCell As Range, NewCell As Range

Dim Rng1 As Range

Set Rng1 = Range("A1:A" & Range("A" & Rows.Count).End(xlUp).Row)

' Columns("B:B").Select

Range("B1:B" & Range("B" & Rows.Count).End(xlUp).Row).AdvancedFilter Action:=xlFilterCopy, CopyToRange:=Range( _

"C1"), Unique:=True

For Each oCell In Rng1

For Each MyCell In Range("C1:C" & Range("C" & Rows.Count).End(xlUp).Row)

If MyCell.Value = oCell.Value Then................

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Mar 6, 2010

I have a running time sheet daily. It has 2 columns for Labor and 2 columns for travel

i.e. travel From / To 1300-1400 calculate 1 hour then travel home 1600-1700 1 hour this is calculated by the date entry 01/02/10 I have another calculation that tracks by the date i.e. 01/02/10 then Next job which all works fine.

The problem becomes how do I calculate a weekly total labor and travel by the date So added another column called weekly hour’s labor and use the Weeknum to determine which week is which day/date so the first Monday in January 2010 is week 2

2 problems

Having many multiple day / date entries are the same date x 7 days Monday –Sunday

(Relies on the date entered and the weeknum) 01/03/10 each line is complete however the dates carry over as does the time

When trying to calculate each row x 3 same date time then the value will be incorrect I need to calculate

Say 9.5 hour labor from the date 01/03/10 not 28.5 hours and then calculate the total weekly hours

01/03/10, 9.5 hours labor, 3 hours travel

01/03/10, 9.5 hours labor, 3 hours travel

01/03/10, 9.5 hours labor, 3 hours travel

i do have work and travel times for each job on the same line (separate columns) but I display the total here by date to summarize the totals

i have tried sum products and sumif to avail. I am using Windows XP SP2 with MS Office 2007

how do i calculate weekly hours by date and weeknum ?

Total Work per day

Total Travel per day

Daily....................

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Oct 4, 2012

Any 'date' or 'day' formula that will automatically insert days of the week in a column? I am attaching a sample.

I want to be able to use a drop-down menu to insert a day of the week (e.g.: Sunday) in cell B2 and have the succeeding days (Mon, Tues,Wed, Thurs, Fri, Sat) populate cells C2~H2 in sequence.....

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Feb 5, 2009

I have to download a report every week and have been manually checking the report weekly for changes.

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Dec 4, 2013

I am trying to fill a row with abbreviated days of the week. example type Wed in cell A1 and cells B1 through Z1 change to the appropriate day Thu, Fri, Sat etc. I know how to do it with the fill off the menu but want to be able to change Wed to Thu and the same cells will change.

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Nov 24, 2009

I have a column where I am convering the Date into a Fiscal week number.

For example 10/6/2009 is Work week 41

Now I want to show October Week 41

I need to add the month and the text "Week" before the week number. what is the formula I use.

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Oct 14, 2009

I need to copy the values of a range on the weekly sales worksheet to the monthly sales worksheet. The last column is the total on the weekly sales. Part of the heading of the total column is the week ending date (e.g. 10/17/2009. On the Monthly Sales I have the months in columns by week ending (e.g. 10/17/2009).

Range I4:I28 to the monthly sales worksheet by date.

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Feb 18, 2009

What I'm after is a sheet that self generates the day of the week in column A and the day of the month in column B. I have a month long sheet where daily entries get made in the DOW row, the day of the month is a reference. I have a macro to generate a new sheet for the next month and would like to auto populate the DOW and DOM. This typically gets done on the second day of the month (data from the first day is entered on the second)

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Jun 18, 2009

How can i change week number to start from 1 if my year starts 1/07/2009 if i use function = weeknum() it returns the value 27.

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Nov 18, 2013

How do I auto fill a series of 2014 dates in the row below the weekdays? I have a row C5 that has a series of auto fill weekdays successfully for 2014. I can't seem to auto fill the weekdates in the row below. I have to make manual adjustments for each Monday, and for the correct month ends, etc.

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Dec 18, 2013

I have a Pivot Table with fields for months and weeks. I also have a "Show Values as % Difference Field" that shows monthly or weekly % change. When I collapse the fields so that it goes from weekly to monthly (or vice versa), I have to manually change each Show Values As % Difference column. Is there a way to do this automatically or quickly?

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Apr 6, 2007

Is it possible to format cells to convert a date format of month/day/year to = year/week #/day of week? For example, 04/05/07 (April 5, 2007) would read as 7145, (7=last digit of year/ 14 = week number / 5 = day of week....Sunday being the first day of week)

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Mar 12, 2008

what is the equivalent command to WEEKNUM if I want to properly calculate Week # of Month?

For example (Sunday being the first day of the week):

January 5th 2008 = Week 1 of January

January 6th 2008 = Week 2 of January

February 2nd 2008 = Week 1 of February

February 3rd 2008 = Week 2 of February

WEEKNUM perfectly calculates this, but it is applicable for the whole year.

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Apr 3, 2007

Is there a way to create a date formula that will only display the Friday date with in any given week?

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May 30, 2014

I uploaded an example file.

Now, what I need to accomplish is that the D1 and D3's in sheet 2 need to result in a date next to the correct country (the date (in full) must be the first monday of the correct week). I find it quit difficult to do this because in sheet 2 you have once the country name, but several possible dates. So in sheet 1 there must be a date for every D1 or D3 but under each other.

The second problem is that I need to accomplish to get a "x" in sheet 3 under the correct month where there is an D1 or D3 in sheet 2 (week).

So I need to go from a week to a month and this can be for one country 1, 2, 3 or even more months (it depends from the D1 and D3's in sheet 2).

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Mar 25, 2009

I need to be able to keep a running count of how many gallons of gas i put in my car each week. Each week is one column. Column A is where i want the total to show.

column B,C,D,E...etc is where i put the numbers in this is all in row 1 for now.

currently i have =sum(B1:BB1). But something is not right because it is not adding the numbers together it will only add what is already there not any numbers that i put in after the formula is made. Do i have the wrong formula or something else wrong. My goal is to see how many gallons i put in at the end of the year, month, quarter, and so i have several other reason for this info.

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Jul 6, 2009

I need a formula on Cell C3 on the attached Sheet1.

This should add numbers from the Actual columns as they are updated; i.e., as soon as I populate 'Actual' columns such as F, I, L, O, R... Cell C3 should add up the numbers automatically. This way I don't have to update the Cell C3 manually each week I populate the Acutal columns.

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Mar 26, 2012

Is there a formula to return the value of week from 9-6-09 i have on cell a1 and 1-2-10 on cell a2 and i want the total number of weeks on a3.

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Jul 24, 2012

I am trying to create a week ending formula in excel. I have a list of dates and in a new column I would like to display the week ending of these dates. I want the weeks to end on Sunday. For example, if the date column has the date 7/24/12 in it, I would like the week ending formula to spit out 7/29/12. What formula would achieve this?

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Oct 3, 2006

I have a sheet (sheet2) that this week has the formula

Cell B2

=Sheet1!D2

Cell B3

=Sheet1!B2

Next week I want the formula to be

Cell B2

=Sheet1!F2

Cell B3

=Sheet1!D2

And so forth.

Each Column has the Week ending date (a sunday) in Row 1. So D2 represents this week and B2 Last week, until next week when D2 becomes the 'last week' and F2 becomes the this week.

The inbetween letters contain another set of data for those weeks so i will apply the same formula to these.

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Nov 9, 2012

On a excel sheet I've got columns, each column represents a weeknumber. I want to calculate the so-called 4 wk average for each row and for each week and this is the formula I use:

(value*Tvalue)+(value*Tvalue)+(value*Tvalue)+(value*Tvalue)/(Tvalue)

(this is not the actual formula but simplified, that's not really important).

It's the checks that make things a bit more complex. If a value of a weeknr is zero, skip it, but if the next value is also zero, just skip the formula alltogether and make it a zero (or text like "false"). So another thing that has to be accounted for is that if a value is zero, the next weeks value is taken instead.Example (see included file):

I want to calculate the formula (mov 4wk avg) for the third value for week 12, which will make the formula

(0.2*6)+(0.3*6) now there's a zero on week 14 so I skip it, then formula will be:

(0.2*6)+(0.3*6)+(0.6*6)+(0.9*6)/(6).

Right now I'm doing this in VBA with a lot of variables and a lot of if statements.Is there an easier more effective

I know the example sheet is a 2007/2010 version but I need to accomplish this for 2003.

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Apr 28, 2014

I have 2 columns in my spreadsheet:

B:B is a column of dates.

C:C is a list of names

formula that will count the number of times the name 'SIMON' appears in column C:C but here is the catch: I only want to know how many times that name has appeared over the course of the previous week. IE NOW - 7days

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Jan 5, 2014

How to solve my problem in attached file : Week Product Level Count.xlsx

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Feb 25, 2014

I have a formula that displays the 1st monday of a month, I need the formula to take into account which day is selected and then display the first of the selected days date for the month.

=DATEVALUE("1"&G7&G5)+IF(WEEKDAY(DATEVALUE("1"&G7&G5),2)=1,0,8-WEEKDAY(DATEVALUE("1"&G7&G5),2))

Is there any way to adjust it to do this the drop down box for the day will be in F9.

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Apr 1, 2014

In the attached sheet i want one more column that will populate week no for each item .. using excel formula. like for item A if 1st date if 1/6 then value will be "W" and if it is 8/6 that is greater than w then the value is "W +1" and we can do it otherwise.. Formula to populate this.

sortbyDates.xlsxâ€Ž

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Oct 6, 2009

Sheet1!A1 = Sat

Sheet2! A2 = I need this to equal Sun....

I tried =sheet1!A1+1 but got #value

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Aug 7, 2014

I have set of range contains in column partner name & Wks from 1 to 5 In row range. i want get result into L2:P10 range from wks table

criteria is <85% where find in between wk 1-5 get result count of <85% and get % & what week the value is?

For example: if One partner contains 2 wk less than <85% then result like 1st 56% WK-1,2nd 58% WK-2

Find the attachment : Pack.xlsbâ€Ž

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