write three complete and well composed paragraphs (in your own words) explain how to compute the answer to the following problem: Phan Incorporated has annual fixed costs totaling $6,000,000 and variable costs of $350 per unit. Each unit of product is sold for $500. Required: a. Calculate the contribution margin per unit. b. Find the break-even point in units. c. How many units must be sold to earn an annual profit of $750,000? Reference Heisinger, K., & Hoyle, J. B. (2012). Managerial Accounting. Creative Commons by-nc-sa 3.0. https://open.umn.edu/opentextbooks/textbooks/managerial-accounting