Percentages

[quiddity]

I need to set up a sheet whose columns will show red when cells between .005 and 6.99, green when >=7 and white when 0. I used conditional formatting to achieve these results.<br><br>

However, I also need a column that will take the number of green cells and determine what percentage they constitute of the total of red and green cells. I used COUNTIF and divided it by number of columns to arrive at percentage, but this is a rigid formula. I need a formula which calculates the percentage of green cells (>=7) but which adjusts according to the number of blank cells(0).<br><br>

I want a formula which is flexible in the number of columns by which it divides the total of green cells. Basically, the number of columns with data varies from row to row. I have a total of 23 columns, but given rows may contain 16, 19, or 23 cells of info. As such, I need to determine the percentage of green according to a number of cells with changeable data. The same row that has 14 cells of data now, may have 19 later and possibly 16 later still.<br><br>

If this isn't clear enough, please let me know. I GREATLY appreciate any help.

[MrShorty]

How about =countif(rng,">=7")/countif(rng,">=.005")? Any blank cells will be treated as 0 and will not be counted in the denominator.

[quiddity]

Thanks for the suggestion. I'm kind of a novice/intermediate with Excel. Lots to learn.

[quiddity]

Outstanding, thanks for your help!