Discussion: which project is best?
The other three calculations support my accept/reject decision, as they all indicate that the project is economically viable. The Internal Rate of Return (IRR) calculation gave the highest rate of return at 20%, which suggests it may be the best assessment method; however, I would also consider looking more closely at Net Present Value (NPV) and Payback Period methods to get a better feel for the potential profitability of the project. Additionally, these calculations should be compared to industry standards or benchmarks to give a clearer picture.