ommon-size and trend percentages for a companys net sales, cost of goods sold, and expenses follow:

	Common-Size Percentages									Trend Percentages
	2023			2022			2021			2023			2022			2021
Net sales	100.0	%		100.0	%		100.0	%		108.1	%		106.5	%		100.0	%
Cost of goods sold	60.9			59.2			55.4			116.2			112.2			100.0
Expenses	35.3			31.9			33.5			112.1			105.0			100.0

Required: a. Calculate the profit percentage for 2021, 2022 and 2023. (Round the final answers to 2 decimal places.)

b. Determine whether the companys profit increased, decreased, or remained unchanged during this three-year period.