Lattimer Company had the following results of operations for the past year: Sales (15,000 units at $12.30) $184,500 Variable manufacturing costs $102,000 Fixed manufacturing costs 25,500 Selling and administrative expenses (all fixed) 40,500 (168,000) Operating income $16,500 A foreign company whose sales will not affect Lattimer's market offers to buy 5,600 units at $8.10 per unit. In addition to existing costs, selling these units would add a $0.31 selling cost for export fees.
If Lattimer accepts this additional business, the special order will yield a: