CarTrax, Inc. has the following operating incomes:

	2017	2016
Net sales	897,000	747,000
COGS	767,000	637,000
Gross margin	130,000	110,000
SG&A	92,000	82,000
Operating Income	38,000	28,000

1. create a trend analysis of the income statements (calculate the year-to-year amount and percent change for each of the line items). What does the trend analysis tell you about the company? (11.3)