You probably somehow calculate end of week which is used in "net work days" row. Instead of using this date, use such formula
This deald with "5 instead of 3" problem
also you can calculate a difference of "old approach count" - "new approach count" for previous week and if its >0 (you can use function MAX(0,calculated difference) add it to current week count.
Anyway - with the attachment the help would be with "excact formulas", but may be you will be able to create them yourself with the above propositions.
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