Deltones, a manufacturer of computer peripherals, has excess capacity. The company's Alabama plant has the following per-unit cost structure for item no. 89: Variable manufacturing Fixed manufacturing Variable selling Fixed selling Traceable fixed administrative Allocated administrative $70 20 7 10 5 3 The traceable fixed administrative cost was incurred at the Alabama plant; in contrast, the allocated administrative cost represents a "fair share" of Deltones' corporate overhead. Alabama has been presented with a special order of 5,400 units of item no. 89 on which no selling cost will be incurred. The proper relevant cost in deciding whether to accept this special order would be: Multiple Choice