The company purchased equipment on January 1, 2020. The equipment is expected to produce 120,000 units over its lifetime of 5 years. The equipment cost $60,000 with a salvage value of $250. The equipment made 60,000 units in the first year, 30,000 in the second year, 15,000 in the third year and 7,500 in the fourth and fifth year. Using a table and showing your work, please calculate the accumulated depreciation at the end of year 4 and at the