Final answer:
The OCF for the project is $2,412,464. The NPV needs to be calculated using discounted cash flows including initial investments and terminal salvage value. Best-case and worst-case NPVs would require adjustment of the variables and recalculation of OCF and NPV.
Step-by-step explanation:
Calculating the project's Operating Cash Flow (OCF) involves considering revenues, costs and taxes. With a selling price of $398 per ton and variable costs of $280 per ton for 28,000 tons, the annual revenue is $11,144,000 (28,000 tons × $398 per ton) and annual variable costs are $7,840,000 (28,000 tons × $280 per ton). The annual depreciation is the initial investment of $6,100,000 spread over the 6-year lifespan, giving $1,016,667 per year. Thus, the annual operating income before tax is the annual revenue minus annual fixed costs of $1,475,000 and variable costs minus depreciation, resulting in $1,812,333. After applying the tax rate of 23%, the after-tax operating income is $1,395,797 (1 - 0.23) × $1,812,333. Adding back the depreciation, the OCF is $2,412,464 ($1,395,797 + $1,016,667).
Next, to determine the Net Present Value (NPV), all cash flows must be considered, including the initial investment in equipment and networking capital, annual OCFs, and the terminal cash flow from the salvage value after taxes. Using a discount rate of 12%, the NPV is calculated by discounting these cash flows back to present value.
The worst-case and best-case NPV scenarios would involve adjusting the assumed variables such as selling price, variable cost, and the salvage value in a conservative and optimistic manner respectively, re-calculating the OCF and consequently the NPV for each.