For each total fixed cost listed below, determine the fixed cost per unit when sales are 45, 90, and 180 units. Store rent $ 6,300 Manager's salary 2,250 Equipment lease 1,800 Depreciation on fixtures 1,350 C Begin by calculating the fixed cost per unit for each of the fixed costs listed, and the total fixed cost per unit when sales are 45 units. Then calculate the fixed cost per unit and the total fixed cost per unit when sales are 90 and 180 units, respectively. (Round all amounts to the nearest cent.) Fixed Cost per Fixed Cost per Unit at 45 Units 6,300 Fixed Cost per Unit at 90 Units Total Fixed Cost Unit at 180 Units Store rent $ Manager's salary 2,250 Equipment lease 1,800 Depreciation on fixtures 1,350 Total fixed cost per unit