Purchase option and sales-type lease BB Leasing acquires equipment and leases it to customers under long-term sales-type leases. BB earns interest under these arrangements at a 6% annual rate. BB leased a machine it purchased for $600,000 under an arrangement that specified annual payments beginning at the commencement of the lease for five years. The lessee had the option to purchase the machine at the end of the lease term for $100,000 when it was expected to have a residual value of $160,000. Calculate the amount of the annual lease payments