Oriole's Hydraulics has provided you with the following selected information from 2020 and 2021: Sales Sales returns and allowances Cost of goods sold Operating expenses Profit 2021 $790000 55400 362000 290000 82600 2020 $737000 51900 300000 257000 128100 Which of the following best interprets Oriole's profit margin? Profit margin has weakened compared to prior year, decreasing from 17.4% to 10.5% O Profit margin has weakened compared to prior year, decreasing from 18.7% to 11.2%. Profit margin has weakened compared to prior year, decreasing from 45.8% to 40.7%. Profit margin has weakened compared to prior year, decreasing from 34.9% to 36.7%