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	$	143		$	191		$	290
Contribution margin per unit		39			76			60
Monthly sales volumeunits		2,930			1,950			1,090
Fixed expenses per month			Total of $326,100

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

	MegaMuscle			PowerGym			ProForce
Contribution margin ratio	27.3	%	39.8	%	20.7	%

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

Overall CM ratio

29.6

%

c. Calculate the firm's monthly break-even point in sales dollars. (Round your intermediate calculations to 1 decimal place.)

Break-even point

d. Calculate the firm's monthly operating income

Operating income

e-1. Management is considering the elimination of the ProForce model due to its low sales volume and low contribution margin ratio. As a result, total fixed expenses can be reduced to $269,910 per month. Assuming that this change would not affect the other models, what would be the effect on net operating income.

Net operating income will

decrease by

f-1. Assume the same facts as in requirement e-1. Assume also that the sales volume for the PowerGym model will increase by 500 units per month if the ProForce model is eliminated. What would be the effect on operating income

Net operating income will

increase by