Belgravia Petroleum Inc. is trying to evaluate a generation project with the following cash flows: Year Cashflow 0 -$300,000,000 1 $63,000,000 2 $85,000,000 3 -$50,000,000 4 $145,000,000 5 $175,000,000 6 -$50,000,000 7 $70,000,000 8 $72,000,000 - Construct a spreadsheet and calculate the following (the required rate of return is 12%): Modified IRR The discounting approach The reinvestment approach The combination approach