Bentz Co. has two divisions, A and B. Invested assets and condensed income statement data for each division for the past year ended December 31 are as follows: Division A Division B Revenues $190,000 $125,500 Operating expenses 112,500 92,750 Service department charges 29,500 12,625 Invested assets 225,000 99,000 Using the expanded expression, determine the profit margin, investment turnover, and rate of return on investment for each division.