can you please explain how to solve this question, step by step

John Wall Inc. is launching a line of "2" branded items in a 2-year project that involves equipment that will be purchased today for $140000, relevant annual sales of $100000, relevant annual costs of $30000, and a tax rate of 30%. What is OCF expected to in 2nd year of the project if MACRS depreciation is used where the depreciation rates in years 1, 2, 3, and 4 are 60%, 30%, 20%, and 10%, respectively? Selected Answer: 78200 Correct Answer: 61,600