Barron Chemical uses a thermoplastic polymer to enhance the appearance of certain RV panels. The initial cost of one process was $142,367. Annual revenues were $28,082 in year one, increasing by $2,140 per year. A salvage value of $23,281 was realized when the process was discontinued after 8 years. MARR = 12%.

What ERR did the company make on the process? Express it as a percentage: if your answer is 12%, input 12