Need help with step 3 and 4Thx

PA11-1 (Algo) Calculating Accounting Rate of Return, Payback Period, Net Present Value, Estimating Internal Rate of Return [LO 11-1, 11-2, 11-3, 11-4] Balloons By Sunset (BBS) is considering the purchase of two new hot air balloons so that it can expand its desert sunset tours. Various information about the proposed investment follows: (Future Value of $1, Present Value of $1, Future Value Annuity of $1, Present Value Annuity of \$1.) Note: Use appropriate factor(s) from the tables provided. Assume straight line depreciation method is used. Required: Help BBS evaluate this project by calculating each of the following: 1. Accounting rate of return. Note: Round your answer to 2 decimal places. 2. Payback period. Note: Round your answer to 2 decimal places. 3. Net present value (NPV). Note: Do not round intermediate calculations. Negative amount should be indicated by a minus sign. Round the final answer to nearest whole dollar. 4. Recalculate the NPV assuming BBS's cost of capital is 13 percent. Note: Do not round intermediate calculations. Negative amount should be indicated by a minus sign. Round the final answer to nearest whole dollar