4. Houston Company produces a product that sells for $175 per unit and has variable costs of $50 per unit. Houston's annual fixed costs are $200,000, and the company wishes to earn a profit of $80,000. What is the sales volume in units and in dollars required to earn the "desired profit." List units with a comma. For example 1,000 List sales dollars with a dollar symbol. Do use a comma. For example. $1,000