Dr Zhivago Diagnostics Corp's income statement for 20x1 is as follows Sales Cost of goods sold Gross profit Selling and administrative expense Operating profit Interest expense Income befoce taxes Taxes (30% Incone after taxes $ 2,710,000 1.850,000 $ 860,000 346,000 $ 519,000 $8,000 S 456,000 136.800 5 319,200 o. Compute the profit margin for 2021 (Input the profit margin as a percent rounded to 2 decimal places.) Profit margin b. Assume that in 20x2 sales increase by to percent and cost of goods sold increases by 20 percent. The firm is able to keep allot