A construction company purchased a loader new 4 years ago for $645,344. They put 10% down at the time of purchase and financed the rest at a 6% APR. They made monthly payments on the balance of the loan for 4 years. They have buyer for 4 year old loader who will pay $150,268. They know that the loader improved their productivity by $146,325 per year. What did it cost the company to own the loader at the end of the 4 year period?