open c2 w1 assessment sales lemin and c2 w1 assessment sales summary. in sales lemin note all the commissions are coming up as 0. go to the data tab, you will observe the commission rate cell f4 is empty. the rate needs to be picked up from the sales summary workbook rates tab. ensure you can see both workbooks on your screen, click in f4 in sales lemin and use a linking formula to pull the commission rate through from sales summary. in sales lemin return to the q1 summary, what is the updated total commission?