Elk Manufacturing has budgeted the following amounts for its next fiscal year:

Total fixed expenses $440,000

Selling price per unit $50

Variable expenses per unit $20

To maintain the original breakeven sales in units if fixed expenses were to increase by 20%, the selling price per unit would have to be:

A. increased by 12%

B. increased by 32%

C. decreased by 32%

D. decreased by 12%

please show step by step so I can understand how to do it