Arlington Merchants reported the following on its income statement for the fiscal years ending December 31, 2016 and 2015.

2016 2015

Sales $4,853,500 $4,755,900

Cost of goods sold 3,258,950 3,200,300

Gross Profit 1,594,550 1,555,600

Operating expenses 875,880 896,280

Profit $718,670 $659,320

Calculate the gross profit margin for Arlington for 2015 and 2016

Calculate the profit margin for Arlington for 2015 and 2016.

For each ratio calculated in (a) and (b) above, comment if the ratio has improved or deteriorated from 2015 to 2016.