Sales for a firm are

$510,000

, cost of goods sold are

$395,000

, and interest expenses are

$15,000

. What is the gross profit margin?\

20.5%

\

18.9%

\

19.6%

\

22.5%

Sales for a firm are $510,000, cost of goods sold are $395,000, and interest expenses are $15,000. What is the gross profit margin? 20.5% 18.9% 19.6% 22.5%