Installment Sales Analysis Complete the following table Installment sales Cost of installment sales. Gross profit Gross profit percentage. Cash collections: 2014 sales 2015 sales 2016 sales Realized gross profit on installment sales. 2014 $50,000 (1) (2) (3) (4) 1,100 2015 $80,000 S (5) (6) 25% 25,000 20,000 10,500 2016 91,800 28,200 (8) 10,000 50,000 45,000 (9)