Estimated hours your staff would have spent, less review time: …
Estimated staff cost of that time: …
Check the inputs: salary a whole number from 1 to 10,000,000, working hours a whole number from 1,000 to 3,000, overhead from 1.00 to 2.00, number of staff a whole number from 1 to 10,000, and items and minutes of zero or more.