Evaluating Turnover and Nontraditional Efficiency Ratios Across Industries a. Compute the days inventory outstanding (DIO) for each company. Note: Do not round until your final answer; round your final answer to the nearest whole day. b. Compute the gross profit margin for each company. Note: Round percentage to one decimal place (for example, enter 6.7% for 6.6555% ). c. Compute the following two nontraditional efficiency metrics: Revenue per square foot and Revenue per store. Note: Round your answers to two decimal places (for example, enter 6.78 for 6.77555 )