I have a sheet that has a list of files with corresponding box numbers. The A column is the folder number, the B column is the box number that the file is in, then in column F is a drop-down box with Yes or No. So, my question is how would I go about getting a count of boxes that have all the files in that box that are marked "Yes" to give me a count. Further explanation, let's say I have a box with 20 files in it. Once, all 20 files are marked "Yes" the value returned would be "1". But, if that same box has only 17 out of the 20 files in it marked "Yes" then the value returned is "0".
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