Z Cola Company is considering the purchase of a special-purpose bottling machine for $70,000. It has an expected useful life of 4 years with no terminal disposal value. The plant manager estimates the following savings in cash operating costs: Year$130,000225,000320,000415,000Total90,000Z Cola uses a required rate of return of 20% in its capital budgeting decisions. Ignore income taxes in your analysis. Assume all cash flows occur at year-end except for initial investment amounts. Requirements:Calculate the following for the special-purpose bottling machine:(a)Net present value. (2 marks)(b)Payback period. (2 marks)(c)Discounted payback period. (2 marks)(d)Internal rate of return (using the interpolation method). (4 marks)(e)Accrual accounting rate of return based on the initial investment (assume straight-line depreciation). (2 marks)