Inventory turnover at retail is equal to net sales divided by: a. Beginning inventory at retail. b. Average inventory at retail. c. Beginning inventory at cost. d. Average inventory at cost. a) Beginning inventory at retail. b) Average inventory at retail. Oc) Beginning inventory at cost. d) Average inventory at cost. Overhead expenses are allocated to particular departments: a. Strictly on floor space. b. Strictly on sales volume. c. Based on a ratio of space to sales volume. d. By floor space or sales volume. a) Strickly on floor space. b) Strickly on sales volume. Oc) Based on a ratio of space to sales volume. d) By floor space or sales volume