Super Sonics Plc has decided to purchase a new machine that cost 3 million. The machine will be depreciated by the same amount each year and will be worth nothing at the end of 4 years. The corporate tax rate is 28 percent. Super Sonics can save 0.9 million on its operating bills every year by using this machine. Cal Leasing Corporation offers to lease the same machine to Super Sonics without charging a balloon payment. Lease payment of 0.8 million per year are due at the beginning of each of the 4 years of the lease. You can borrow at 8 percent before taxes. Should you lease or buy the machine? Please show your workings.