The following data are available for product no. CK74, manufactured and sold by Ruby Corporation: Maximum capacity with present facilities 11,000 units Total fixed cost (per period) $ 851,400 Variable cost per unit $ 120.00 Sales price per unit $ 186.00 10. Required information The number of units of CK74 that Ruby must sell to break- even is: 12,900. 4,577. 7,095. 6,050.