Answer and Explanation:
The computation is shown below:
But before reaching to the final answers, first determine the contribution margin per unit which is
a. Contribution margin per unit =Sales-Variable cost
= $80 - $43
= $37 per unit
Now
Breakeven = Fixed expenses ÷ Contribution margin
= $340,400 ÷ $37
= 9,200 units
b.Contribution margin = Sales - Variable cost
= $80 - $46
= $34 per unit
Now
New Breakeven = Fixed expenses ÷ Contribution margin
= $270,000 ÷ 34
= 7,941 units