kindly please show me the step by step computation for this question.

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Question 4: ACME manufacturing is considering replacing an existing production line with a new line that has a greater output capacity and operates with less labour than the existing line. The new line would cost $1 million, have a 5-year life, and would be depreciated using the straight-line depreciation method over 5 years. At the end of 5 years, the new line could be sold as scrap for $200 000 (in year 5 dollars). Because the new line is more automated, it would require fewer operators, resulting in a saving of $40 o00 per year before tax and unadjusted for inflation (in today's dollars). Additional sales with the new machine are expected to result in additional net cash inflows, before tax, of $60000 per year (in today's dollars). If ACME invests in the new line, a one-time investment of $10000 in additional working capital will be required. This will be recovered at the end of the project. The tax rate is 30 per cent, the opportunity cost of capital is 10 per cent, and the annual rate of inflation is 3 per cent. What is the NPV of the new production line