a) T&T Workshop is considering a four-year project to improve its production efficiency. Buying a new machine press for $560,000 is estimated to result in $210,000 in annual pre-tax cost savings. The press will be depreciated straight-line to zero over its four-year tax life. Assume the tax rate is 25 percent. Compute the operating cash flow and net present value for this new machine press. If the required return is 12 percent, should T&T Workshop buy in the new machine press? (8 marks)