Basically what i need to do is add individual commisions for each
salesperson. if they sell 1-11 untis hey receive 25% commission. On the 12
sale, they receive 30% comission for all of their sales. Therefore, i must
go back and add in the extra 5% of commission for the first 11 sales. on the
16th sale they start to receive 35% commission...i miust then go back and add
on the additional 5% for the first 15 sales. Lastly, on the 26th sale they
receive 40% commission and then once again i must add the additional 5% for
all of the previous sales. Thus, there commission is retroactive
My problem is that not all sales will land in the same cell, as see some
cells do not count as a unit sold, and thus i am having trouble figuring out
a way to make one spreadsheet that will be compatable for all salesman.

Thanks in advance.