The variable cost per unit is 53 and the firm has fixed costs totaling $400. art. Orange County Inc, sells its only product for 55 per unit Compute the number of units Orange County must sell to break even Determine sales revenue (in dollars) if the firm plans $250 pretax prom 3. Compute the number of units Orange County a 40% income tax rate. upute the number of units Orange County must sell if it plans to earn $180 net income and has ** gnoring income taxes, determine sales revenue (in dollars) if the firm wants to earn an 8% profit margin 5. Ignore income taxes. Assume that Orange County expects to earn $300 of pretax profit under its original assumptions (selling price $5, variable cost $3, and fixed costs $400) by selling 350 units. The firm can decrease its fixed costs to $200 if it is willing to increase variable cost to $3.50 per unit. Should the company change its cost structure