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When determining the lease payment in a lease, the lessor divides the amount to be recovered by a present value of an annulty factor where n= the economic life of the asset. subtracts the amount of the unguaranteed residual from the asset fair value. adds the amount of the unguaranteed residual value to the asset fair value. divides the amount to be recovered by a present value of an annuity factor where n= the lease term