The marketing manager of Perez Corporation has determined that a market exists for a telephone with a sales price of $$21$ per unit. The production manager estimates the annual fixed costs of producing between $41,300$ and $81,800$ telephones would be $$340,000.$

Required

Assume that Perez desires to earn a $$125,000$ profit from the phone sales. How much can Perez afford to spend on variable cost per unit if production and sales equal $46,500$ phones?

Variable cost per unit