Tennis Products Corporation produces three models of high-quality tennis rackets. The following table contains recent information on the sales, costs, and profitability of the three models:

MODEL AVERAGE CURRENT TOTAL VARIABLE CONTRIBUTION CONTRIBUTION QUANTITY PRICE (S) REVENUE (S) COST PER MARGIN PER MARGIN (S) * SOLD (UNITS/ UNIT ($) UNIT ($) MONTH) 15,000 530 $450,000 $15.00 $15 $225,000 5,000 $35 5175,000 518.00 $17 585,000 10,000 $450,000 $20.00 $25 $250,000 Total $1,075,000 58560,000