Calculate the net present value (NPV), benefits / costs (B / C), internal rate of return (IRR) for each of: 1 when you increase costs by 10%, 2 when you decrease returns by 10% 3 When you increase costs and reduce returns together by 10%

Total year costs Net cash Net cash flow as flow when costs Decreasing increase revenue and 10% revenues decrease %10 -514350 -346500 Net Decreasing Increasing Total cash revenue costs revenue flow 10% 10 % when costs increase %10 - 1698350 1332000 1846350 1480000 | 1678500 1 955250 989500 1103250 1332000 376750 1480000 342500 2 955250 989500 1103250 1332000 376750 1480000 342500 3 955250 989500 1103250 1332000 376750 1480000 342500 4 955250 989500 1103250 1332000 376750 1480000 342500 5 955250 989500 1103250 1332000 376750 1480000 342500 6 955250 989500 1103250 1332000 376750 1480000 342500 IN 955250 989500 1103250 1332000 376750 1480000 342500 od 955250 989500 1103250 1332000 376750 1480000 342500 9 955250 989500 1103250 1332000 376750 1480000 342500 10 Total year costs Net cash Net cash flow as flow when costs Decreasing increase revenue and 10% revenues decrease %10 -514350 -346500 Net Decreasing Increasing Total cash revenue costs revenue flow 10% 10 % when costs increase %10 - 1698350 1332000 1846350 1480000 | 1678500 1 955250 989500 1103250 1332000 376750 1480000 342500 2 955250 989500 1103250 1332000 376750 1480000 342500 3 955250 989500 1103250 1332000 376750 1480000 342500 4 955250 989500 1103250 1332000 376750 1480000 342500 5 955250 989500 1103250 1332000 376750 1480000 342500 6 955250 989500 1103250 1332000 376750 1480000 342500 IN 955250 989500 1103250 1332000 376750 1480000 342500 od 955250 989500 1103250 1332000 376750 1480000 342500 9 955250 989500 1103250 1332000 376750 1480000 342500 10