How the Lease Calculator works
Leases are priced from a capitalized cost, a residual value and a money factor. Where the residual is already netted out, the payment math is the same amortization you see here.
Payment = P × r ÷ (1 − (1 + r)^−n), where P is the amount borrowed, r is the monthly rate (APR ÷ 12) and n is the number of monthly payments.