Assuming the sale price is in A4:
Formula:
=MAX(IF(A4>25000,4000+((A4-25000)*0.1),IF(A4>5000,1000+((A4-5000)*0.15),A4*0.2)),15)
you can just paste this in row 4 of the column you want the comission in and then drag up or down to expand the formula
Bookmarks