manual solution using formulas (no excel) with cash flow diagram

A metal plating company is considering four different methods for recovering by-product heavy metals from a manufacturing site's liquid waste. The investment costs and annual net incomes associated with each method have been estimated. All methods have an 8-year life and the MARR is 10%. Use the ERR method (and an external reinvestment rate of 12%) to determine which method should be selected. B D 36,000 30,000 55,000 40,000 First Cost, $ Annual Cash Flow, $/year +5,000 +4,000 + 10,500 +8,000 Salvage Value, $ 2,000 1,000 0 500 A metal plating company is considering four different methods for recovering by-product heavy metals from a manufacturing site's liquid waste. The investment costs and annual net incomes associated with each method have been estimated. All methods have an 8-year life and the MARR is 10%. Use the ERR method (and an external reinvestment rate of 12%) to determine which method should be selected. B D 36,000 30,000 55,000 40,000 First Cost, $ Annual Cash Flow, $/year +5,000 +4,000 + 10,500 +8,000 Salvage Value, $ 2,000 1,000 0 500