TPS Lease Calc is a quick and easy way to calculate any vehicle''s monthly lease payment. Use it to verify the car dealership''s numbers before signing. It allows you to do what-if analysis by entering different downpayment amounts, sale prices and/or interest rates to compare monthly payments. TPS Lease Calc will remember your last lease calculation and display it the next time you start the application. For ease of entry, a number pad has been included for all required numeric entries.