Kelty is deciding between three alternatives for its process strategy for producing its sleeping bags.

Intermittent

Repetitive

Continuous

Annual Fixed Cost

$$133,000$

$$309,000$

$$875,000$

Per unit variable cost

$$35$

$$27$

$$24$

Below what volume is the Intermittent process the preferred option of the three process strategies?

Enter your final answer rounded to the nearest unit.