dont use excel to solve it

.4 You are considering an investment project with the following financial information: (a) Required investment =$500,000 (b) Project life =5 years (c) Salvage value =$50,000 (d) Depreciation method = straight-line depreciation (no half-year convention) (e) Unit price =$40 (f) Unit variable cost=$18 (g) Fixed annual cost =$230,000 (h) Annual sales volume =100,000 units (i) Tax rate =35% (j) MARR=15% Suppose the company is most concerned about the impact of its price estimate on the project's rate of return. How would you address this concern