Internal Rate of Return. Inatech is contemplating two different projects and decides to perform a financial analysis to determine which is more financially lucrative. Project A and B have the cash flows as shown and Inatech uses a required rate of return of 8%. Compute the internal rate of return for both projects to determine which is worth of funding. Year A B 0 -$500,000 -$400,000 1 $260,000 $200,000 2 $170,000 $100,000 3 $125,000 $100,000 4 $75,000 $50,000 5 $25,000 $25,000.