Instruction. Calculate the NPV, B/C and IRR of the following reforestation activities. Use the interest rate of 2% & 3%. Revenue (Php) Year Activity Cost (Php) 0 Plantation establishment 20,000 10 Fertilizer Inputs 5,000 30 Commercial thinning & 25,000 fertilizer 50 Final Harvesting 50,000 Annual Administrative 600 80,000 200,000