Vertical analysis (common size) percentages for Kochheim Companys sales, cost of goods sold, and expenses are shown below.

Vertical Analysis	2015	2014	2013
Sales	100.0	100.0	100.0
Cost of goods sold	60.2	62.4	63.5
Expenses	25.0	25.6	27.5

(a)Calculate net income.

2015	2014	2013
Net income

(b)Did Kochheims net income as a percent of sales increase, decrease, or remain unchanged over the 3-year period?

IncreasedDecreasedRemain Unchanged

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