todd co is deciding to purchase or lease an automatic casting machine that will cost 15000, to be depreciated straight-line basis over a 5-year period. tax=50%. actual expected salvage value is 2100. maintenance & insurance expenses= 1000. todd co can borrow funds at before-tax rate of 8%.

lease details: lease payment = 4200

required:

(39)PV of cost of owning,

(40)PV of cost of leasing, NAL, and decision