Present Value of an Annuity of $1 at Compound Interest a. Determine the equal annual net cash flows from operating the bulldozer. Enter all amounts as positive numbers. Annual cash outflows: Hours of operation Fuel cost per hour Labor cost per hour Total fuel and labor costs per hour Fuel and labor costs per year Maintenance costs per year Annual net cash flow indicate a negative net present value. Present value of annual net cash flows Less amount to be invested Net present value c. Osborne Excavation should the investment because the bulldozer cost is than the present value of the cash flows at the desired rate of return of 20%