Qu4 Seved 2 Philips Sonicare Toothbrush is sold for $22. per unit. Variable manufacturing cost is $9.02 per unit plus o 7% sales commission Total fored costs are $153.920 per month Three requirements a. Compute the contribution margin ratio b. Compute the break-even sales revenue in the dollar amount c. What sales revenue is needed to achieve a $112.320 per month profit? 45 pos o Compute the contribution murgin ratio 001010 Contatos b. Computeren even sales revenue in the door amount c. W10 chave 512320 mort pot