Selected accounting data as at December 31, 2020 for The Auto Shop follows: Sales revenue Depreciation expenseequipment Rental Revenue $ 635,400 15,000 14,600 163,600 54,000 328,000 Salary expense Rent expense Cost of goods sold 31,800 Utilities expense Insurance expense Office supplies expense 12,000 13,200 11,600 Sales discounts Interest expense 800 Sales returns and allowance 23,600 REQUIRED: Compute the following amounts a. Net Sales b. Total operating expenses c. Other revenues and expenses. d. Gross profit