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Data for Hermann Corporation are shown below:

	Per Unit				Percent of Sales
Selling price	$	90				100	%
Variable expenses		63				70
Contribution margin	$	27				30	%

Fixed expenses are $78,000 per month and the company is selling 3,500 units per month.

Garrison 16e Rechecks 2017-05-02

2-a. Refer to the original data. Management is considering using higher-quality components that would increase the variable expense by $4 per unit. The marketing manager believes that the higher-quality product would increase sales by 20% per month. Calculate the change in total contribution margin.

2-b. Should the higher-quality components be used?