Variable costs as a percentage of sales for Lemon Inc. are 63% current sales are $536,000, and fixed costs are $191,000 How much will operating income change if sales increase by $45.000 Oa 120350 intre Ob 11.50 Oc 11.350 de Od $16.50 de Zeke Company sells 26,600 units at $14 per unit. Variable costs are 59 per unit, and fored costs are $35.000. The contribution margin ratio and the unit contribution margin, respectively, are Os, and yet Ob und 114 Oc. In 114 per Od 30 de