please show full working (steps by steps with the calculations, best written on paper)

Z4 Find the NPV @ 10%, IRR, and Paybaek Period for the following pr0j ccts: Initial Investment Projected After Tax Profit (loss) Both projects requirean increase in working capital of $160,000 before t Year 1 2 3 4 5 6 7 8 AA $1,000,000 (54545Lk V x($60,000)" ', $1 l0,000 $300,000 $300,000 $320,000 Nil Nil Nil ZZ $880,000 $ 1 70,000 $170,000 $ 1 70,000 $ 170,000 $ 1 70,000 $170,000 $ 1 70,000 $ 170,000 he commencement. It expected that such working capital will be recovered fully at the end of project life. The initial investments, which are investments in fixed assets, are with zero salvage value. A "U subject to straight-line depreciatic