Anne Teak, the financial manager of a furniture manufacturer, is considering operating a lock-box system. She forecasts that 900 payments a day will be made to lock boxes with an average payment size of $2,000. The bank's charge for operating the lock boxes is $0.30 a check. The interest rate is 0.014% per day.

a.If the lock box makes the cash available 2 days earlier, calculate the net daily advantage of the system. (Do not round intermediate calculations.)

b.Is it worthwhile to adopt the system?

• Yes
• No

c. What minimum reduction in the time to collect and process each check is needed to justify use of the lock-box system? (Do not round intermediate calculations. Round your answer to 2 decimal places.)