Beval Ltd is interested in expanding its products and is interested in buying a new piece of machinery for £500,000. It

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Beval Ltd is interested in expanding its products and is
interested in buying a new piece of machinery for £500,000. It has
estimated that in the first year it should be able to manufacture
50,000 units at a selling price of £10 per unit; in the second year
it should increase to 55,000 units at a selling price of £10.50 per
unit; the third year 52,000 units at a selling price of £9 per
unit; and in the final year it would be 40,000 units at a selling
price of £8 per unit. In the first year the variable costs are
estimated to be £5 per unit, inflating at 3% per annum after that.
Fixed costs are £50,000 in year 1, increasing at 2% per annum.
Corporation tax is at 19% payable in the year. The residual value
of the machinery should be £100,000 at year 4 prices. Cost of
capital is 9%.
Compile a report on the superiority of Net Present Value (NPV)
over other investment appraisal techniques.