Current Attempt in Progress Eastland Corp. had total variable costs of $160,512, total fixed costs of $112,680, and total revenues of $250,800. (a1) Calculate contribution margin ratio. Contribution margin ratio eTextbook and Media Save for Later % Attempts: 0 of 1 used Submit Answ (a2) The parts of this question must be completed in order. This part will be available when you complete the part above.