Category Prior year Current year Accounts payable 41,400 45.000 Accounts receivable 115,200 122,400 Accruals 16,200 13,500 Additional paid in capital 200,000 216,660 Cash 2?? 792 Common Stock par value 37,600 42,000 COGS 131 400 178,085.00 Depreciation expense 21,600 23,264.00 Interest expense 16,200 16,015.00 Inventories 111,600 115,200 Long-term debt 135,000 137,098.00 Not fixed assets 375,962.00 399,600 Nolos payable 59.400 64.800 50,400 64,802.00 Operating expenses (excl. depr.) Retained cornings 122,400 136,800 Sales 255,600 336.374.00 Taxes 9,900 18,814.00 What is the firm's current year operating profit margin