Calculating Vapor Pressure Deficit

Dec 23, 2008

I've run into a formula that I can't seem to get working correctly in Excel and I'm about at the end of my rope.

The formula I'm interested in is the first calculation for estimation of Vapor Pressure Deficit (important in Viticulture and botany in general).

The specific formula can be found under Step 2a in the attachment below. It's also located 3/4 of the way down the page here.

In the code below is the formula I've input into excel. C2 references a field that holds Ambient Temp in degrees F (in the formula it is converted to Kelvin). In the attachment below they give an example using 50F which gives a result of .178 psi.

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Deficit Cells Highlighted In Red If The Deposits Are Less Than The Expenses.

Aug 4, 2009

****** http-equiv="Content-Type" content="text/html; charset=utf-8">****** name="ProgId" content="Word.Document">****** name="Generator" content="Microsoft Word 12">****** name="Originator" content="Microsoft Word 12"> Deposits
Expenses
Monthly Balance
Surplus/Deficit
$ 2,058.20
$ 1,509.10
$ 753.86
$ 549.10
$ 2,185.05
$ 1,939.35
$ 999.56
$ 245.70
$ 1,078.90
$ 1,278.50
$ 799.96
$ (199.60)


I want the Surplus/Deficit cells Highlighted in red if the Deposits are less than the expenses.

Can I this? Maybe using a macro or formula not entirely sure
If so how?

I would like to be able to this myself but could not figure it out using conditional formatting in Office 2007.

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ActivityStart timeEnd timeTATACT 1ACT 2ACT 3ACT 4ACT 5


Based on time entered in start time and end time the TAT column should calculate the TAT based on the above standards.

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Edit:
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