Why is my part b wrong?

> > Cell Styles Styles G1 The following table shows data on the average number of customers processed by several bank service units each day. The hourly wage rate is $20, the overhead rate is 1.1 times labor cost, and material cost is $5 per customer. Unit A B D Employees 3 5 7 4 1 Unit Customers Processed / Day 37 46 56 33 B C D E Multifac Labor tor Customers/Pr Product Producti Employees ocess Per day ivity 3 37 12.33333 0.032 5 46 9.2 0.025 7 56 8 0.022 4 33 8.25 0.023 vity A 2. 3 B 4 C Click here for the Excel Data File 5 D 6 7 a. Compute the labor productivity and the multifactor productivity for each unit. Use an eight-hour day for multifactor productivity. (Round your "Labor Productivity" answers to 1 decimal place and "Multifactor Productivity" answers to 3 decimal places.) 8 Unit Employees 3 Multifac Labor tor Customers/Pr Product Producti ocess per day ivity vity 37 12.3 0.032 46 9.2 0.025 56 8.0 0.022 33 8.3 0.023 9 A 10 B 5 11 C 7