ABC Inc. is considering the purchase of a new machine which will reduce manufacturing costs by $50,000 annually. The machine falls into the MACRS 3-yr class, (33%, 45%, 15%, and 7%). Mars's marginal tax rate is 40 percent. If the machine costs $90,000, and the modification cost is $10,000, what is the project's operating cash flow in year 1 (OCF₁)?