a.calculate the contribution margin per unit and the contribution margin ratio b.calculate the firms operating incom(or loss) if the volume changed from 10,000 units to 1)14,000 units .2)6,000 units c)refer to your answer to a fir total revenues of $50,000.calculate the firms operating income(or loss( if unit selling price and variable expenses per unit do not change and total revenues 1.increase $15000 2.decrease $13000

1012I4 12,12 9 Required: a. Prepare an ineome slatement in the contributlon margin format h. Calculate lhe contilioution margin per canit and the contribution margin ratio c. Calculate the firme operaling fincome (or lose) if the volume clianged from 10,000 units to 1 14,000 units 2 G,000 units loss) If unit selling price and variable expenses per unit do not change and total fevences 1 Inerease 415,000 2 Decrease \$13,000 ProblerHrepare a contribution margin formal income slatement, answer what if questions shewi here is an ingotme 12.22 statement in the traditlonal format for a fiem with a sales volume of 18000 units