Borges Machine Shop, Inc., has a 1-year contract for the production of 250,000 gear housings for a new off-road vehicle. Owner Luis Borges hopes the contract will be extended and the volume increased next year. Borges has developed costs for three alternatives. They are general-purpose equipment (GPE), flexible manufacturing system (FMS), and expensive, but efficient, dedicated machine (DM). The cost data follow: General-Purpose Equipment (GPE) Flexible Manufacturing System (FMS) Dedicated Machine (DM) Annual contracted units. Annual fixed cost Per unit variable cost 250,000 $150,000 $18.00 250,000 250,000 $225,000 $14.00 $500,000 $13.00 The option GPE is best when the contracted volume is below units (enter your response as a whole number).