(a) The ABC Company purchased a special machinel year ago at a cost of \\( \\mathrm{K} 12,000 \\). At that time the machine was estimated to have a useful life of 6 years and no salvage value. The annual cash operating cost is approximately \\( K 20,000 \\). A new machine has just come on the market which will do the same job but with an annual cash operating cost of only K17,000. This new machine costs K21,000 and has an estimated life of 5 years with zero salvage value. The old machine can be sold for \\( \\mathrm{K} 10,000 \\) to a scrap dealer. Straight-line depreciation is used, and the company's income tax rate is 40 percent. Assuming a cost of capital of 10 percent after taxes, what is the NPV of the new investment? (10 marks)