Total newbie formula question

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I've had to make a spreadsheet for work. Part of it looks like this:

Panel Size  Price/ea Weight/ea Total ft2 Price/ft2

3x8           $ 168.00         70           24         $ 7.00

3x9           $ 189.00         78           27          $ 7.00

3x10          $ 201.00         87          30          $ 6.70

I figured out the price/ft2 on a calculator. How would I figure it in a formula? I tried SUM=C2/E2 (the first row), but that didn't work. QUOTIENT doesn't seem to work either. I also need to average the price/ft2 for all the rows in a separate cell. I'm just learning this program for work, so please keep the answer as simple as possible.

Thank you!

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The four basic algebraic functions, add, subtract, multiply and divide are all written as you speak.

[add] = A1 + A2 
[subtract] = A1 - A2
[multiply] = A1 * A2
[divide] = A1 / A2

So assuming that your example is in a range A2:E4, you can work out the price per sqft.

as = 168 / 24 
or = A2 / D2

It could also be = 168 / (3 * 8) which can't be transscribed using cell references because you have the size in a single cell. Consider using two columns for Width and Lenth to enable more calculations.
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I created a simple spreadsheet attached to this post that should do what you are asking. I did split your panel size into 2 columns ... one for panel width (Col. A) and one for panel length (Col. B). The formula in Column E is: =sum(A2*B2) and will give you the square footage of the panel. The formula in Column F to figure the price per square foot is: =SUM(C2/E2). In cell G2 the formula: =AVERAGE(F:F) will give you the average price per square foot.

Hope this is what you are looking for.

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