Suppose a practice bills an average of $20,000/day for co-pays. Currently, patients get 30 days to pay the bill. The current annual interest rate is 10%. The practice can lease a co-pay processing machine so that patients will pay at the office before a service is provided. If the practice leases the machine, then they will save on the interest and invoice-mailing charges. The annual leasing cost of the machine is $10,000 per year. The increase in profit if the practice leases the machine is?