Finch Corporation's balance sheet indicates that the company has $560,000 invested in operating assets. During 2018, Finch earned operating income of $62.720 on $1,120,000 of sales Required a. Compute Finch's profit margin for 2018. b. Compute Finch's turnover for 2018. c. Compute Finch's return on investment for 2018 d. Recompute Finch's ROI under each of the following independent assumptions: (1) Sales increase from $1,120,000 to $1.344,000, thereby resulting in an increase in operating income from $62,720 to $67,200 (2) Sales remain constant, but Finch reduces expenses, resulting in an increase in operating income from $62,720 to $64,960 (3) Finch is able to reduce its invested capital from $560,000 to $448.000 without affecting operating income