Project A Project B Project C Year 0 -30,000 -20,000 -50,000 Year 1 0 4,000 20,000 Year 2 7,000 5,000 20,000 Year 3 20,000 6,000 20,000 Year 4 20,000 7,000 5,000 Year 5 10,000 8,000 5,000 Year 6 5,000 9,000

I need the formula for IRR and NVP manually for calculation.