Financial Spreadsheet Help (2007)

I am trying to create a stock portfolio data spreadsheet for Excel 2007, but I am encountering many problems.

Firstly, I am trying to find a formula that will divide the current value of the stock with the initial price. However, I receive a #Value error (or some equivalent) whenever I try to enter =Quotient(G6:G100,F6-F100).

Also, can Excel automatically change the color of the text depending on the preceeding value? If I enter in $222 in one cell followed by $232 in the next, can Excel color the numbers red or green depending on higher/lower?

More later. (If you need further explaining, feel free to PM me.)

I appreciate all help.


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