What is the difference between the contribution margin ratio and contribution margin per unit? A. Contribution margin ratio is contribution margin divided by sales dollars, while the contribution margin per unit is the product's revenu B. C. n variable cost per unit. Contribution margin ratio is contribution margin divided by sales dollars, while the contribution margin per unit is the product's revenu Contribution margin ratio is profit per dollar of sales revenue, while the contribution margin per unit is the product's revenue less its v cnntrihitinn marnin ratin ie nrnfit ner dnllarnf ealae rauanila whila tha rnntrihitinn manin nar ,init ie tho nrndirre raManila lace it'e fi