A manufacturing company plans to invest in new machinery costing $4,50,000. The machinery has a useful life of 6 years with no salvage value. The company expects an annual net operating income of $1,00,000 after depreciation. The tax rate is 40%. The discounting rates and their respective present value factors for 6 years are as follows:

Discounting Rate	Cumulative Factor
10%	4.355
12%	4.111
14%	3.889
16%	3.685
18%	3.498

Requirements:

1. Calculate the Net Present Value (NPV).
2. Determine the Payback Period.
3. Calculate the Accounting Rate of Return (ARR).
4. Compute the Internal Rate of Return (IRR).