Your firm is considering a project with a five-year life and an initial cost of $120,000. The discount rate for the project is 10%. The firm expects to sell 2,100 units a year. The expected cash flow per unit is $20. The firm will have the option to abandon this project after three years at which time it expects it could sell the project for $75,000. If this project sees units fall to 1,960 in the last two years, then which is the highest cash flow per unit that the firm will be willing to abandon?