IRR, NPV, and Payback Period JB Chemical currently discharges liquid waste into Calgary's municipal sewer system. However, the Calgary municipal government has informed JB that a surcharge of $4 per thousand liters will soon be imposed for the discharge of this waste. This has prompted management to evaluate the desirability of treating its own liquid waste. A proposed system consists of three elements. The first is a retention basin, which would permit unusual discharges to be held and treated before entering the downstream system. The second is a continuous self-cleaning rotary filter required where solids are removed. The third is an automated neutralization process required where materials are added to control the alkalinity-acidity range. The system is designed to process 600,000 liters a day. However, management anticipates that only about 200,000 liters of liquid waste would be processed in a normal workday. The company operates 300 days per year. The initial investment in the system would be $450,000, and annual operating costs are predicted to be $150,000. The system has a predicted useful life of eight years and a salvage value of $50,000. (a) Determine the project's net present value at a discount rate of 12 percent. (Round to the nearest whole number.) $ Answer (b) Determine the project's approximate internal rate of return. (Round answer to the nearest whole percentage.) Answer % (c) Determine the project's payback period. Note: Round your answers to two decimal places. For example, enter 8.84 for 8.844 and 8.85 for 8.845. Answer years