Use the following to answer questions 34 - 39 (REVIEW) TR reports the following income statement results: Sales Operating expense Net income Sales returns & allowances Gross profit Interest revenue $700,000 201,200 57,750 12,500 266,750 18,000 34. $ Calculate Net sales: 35. $. Calculate Cost of Goods Sold 36. $ Calculate operating income 37. $. _Calculate Income before Income tax (IBT) 38. ________%. Calculate the gross profit margin (one decimal place) 39. _%. Calculate the net profit margin (one decimal place)