Exercise 5-10 Calculating expenses and cost of goods sold-perpetual L01,3,5,6 Westlawn Company discloses the following for the gear ended May 31, 2017: Sales Sales Gross profit from sales Loss $495,000 5,900 13,000 124,000 28,000 Required Calculate (a) net sales, (b) total operating expenses, (c) cost of goods sold, and (d) gross profit ratio (round to two decimal places). Analysis Component: Refer to your answer in part (d). Westlawn experienced a gross profit ratio for the year ended May 31, 2016, of 23%. Is the change in the ratio favourable or unfavourable