Daffy Duct, Inc., has the capacity to produce 12,000 cases of duct tape per year but only produces and sells 10,000 cases at $50 per case. The direct materials equals $120,000, direct labor equals $140,000, and overhead equals $100,000. Sixty percent of the manufacturing overhead is variable. The forty percent of fixed overhead is allocated equally to all products. Dewey, Cheatum & Howe has offered to purchase 1,000 cases but at a reduced price of $40 per case. What is the additional operating income (loss) of accepting this offer? ENTER NEGATIVE NUMBERS WITH A "-" SIGN. DO NOT USE PARENTHESES. EXAMPLE: -1,000