Muscle Beach, Inc., makes three models of high-performance weight-training benches. Current operating data are summarized here: MegaMuscle PowerGym ProForce Selling price per unit $ 131 $ 193 $ 289 Contribution margin per unit 45 76 59 Monthly sales volumeunits 3,000 2,020 930 Fixed expenses per month Total of $323,200 a. Calculate the contribution margin ratio of each product. (Round your answers to 1 decimal place.)

Calculate the firm's overall contribution margin ratio. (Round your answer to 1 decimal place.)

a. Calculate the contribution margin ratio of each product. (Round your answers to 1 decimal place.)

b. Calculate the firm's overall contribution margin ratio. (Round your answer to 1 decimal place.)

c. Calculate the firm's monthly break-even point in sales dollars

d. Calculate the firm's monthly operating income.