In: Finance
Part A of Answer: When IRR is 15%
| Year | 0 | 1 | 2 | 3 | 4 | 5 | 
| Cost of new servers | (250,000) | |||||
| (43,898) | ||||||
| Saving on Maintenance | 25,000 | 25,000 | 25,000 | |||
| Saving of eletrical cost | 20,000 | 20,000 | 20,000 | 20,000 | 20,000 | |
| Saving of air conditioning expenses | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | |
| Total Cash Flow | (293,898) | 55,000 | 55,000 | 55,000 | 30,000 | 30,000 | 
| IRR | -9.24% | |||||
| Working Note: Present value calculation when IRR is 15% | ||||||
| one month investment | 15,000 | |||||
| Annual IRR | Monthly IRR | |||||
| Internal Rate of Return (IRR) | 15% | 1.25% | ||||
| Month | 1 | 2 | 3 | |||
| Present Value | 14,815 | 14,632 | 14,451 | |||
| Total Present value for three months | 43,898 | 
As, caluculated IRR is just 9.24% which is less than required IRR of 15% so project should not be accepted.
Following picture shows all excel formulas used in above calcualtion:

Part B of Answer: When IRR is 2.5%
| Year | 0 | 1 | 2 | 3 | 4 | 5 | 
| Cost of new servers | (250,000) | |||||
| (44,813) | ||||||
| Saving on Maintenance | 25,000 | 25,000 | 25,000 | |||
| Saving of eletrical cost | 20,000 | 20,000 | 20,000 | 20,000 | 20,000 | |
| Saving of air conditioning expenses | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | |
| Total Cash Flow | (294,813) | 55,000 | 55,000 | 55,000 | 30,000 | 30,000 | 
| IRR | -9.34% | |||||
| Working Note: Present value calculation when IRR is 15% | ||||||
| one month investment | 15,000 | |||||
| Annual IRR | Monthly IRR | |||||
| Internal Rate of Return (IRR) | 2.5% | 0.21% | ||||
| Month | 1 | 2 | 3 | |||
| Present Value | 14,969 | 14,938 | 14,907 | |||
| Total Present value for three months | 44,813 | 
As, caluculated IRR is just 9.34% which is less than required IRR of 15% so project should not be accepted.
Following picture shows all excel formulas used in above calcualtion:
