How do you get the Present value of anuity for the 10% and 8%. I understand how to do the problems but when it comes to multiply the (102000-15,000)x.4.99271, how do they get the 4.99271 or the 4.79079?

Metcalf Company leases a machine from Vollmer Corp. under an agreement which meets the criteria to be a capital lease for Metcalf. The six-year lease requires payment of $102,000 at the beginning of each year, including $15,000 per year for maintenance, insurance, and taxes. The incremental borrowing rate for the lessee is 10%; the lessor's implicit rate is 8% and is known by the lessee. The present value of an annuity due of 1 for six years at 10% is 4.79079. The present value of an annuity due of 1 for six years at 8% is 4.99271. Metcalf should record the leased asset at