The computation is shown below:
a) Variable expense per unit is
= Selling price of a product × 1 - CM ratio
= $34 × 1 - 0.30
= $34 × 0.70
= $23.8
b) The Break even point in units is
= Fixed cost ÷ Contribution margin per unit
= $193,800 ÷ $34 × 30%
= 19,000 units
And,
Break even sales is
= Fixed expenses ÷ Contribution margin ratio
= $193,800 ÷ 30%
= $646,000
c) Required unit Sales is
= (Fixed cost + Desired profit) ÷ Contribution margin per unit
= ($193,800 + $91,800) ÷ $10.20
= 28,000 units
And,
Required sales
= (Fixed cost + Desired profit) ÷ Contribution margin ratio
= ($193,800 + $91,800) ÷ 30%
= $952,000
d) New break even unit is
= $193,800 ÷ $13.60
= 14,250 units
The contribution margin unit is
= $34 × 30% + $3.40
= $13.60
And,
New Break even Sales is
= 14,250 units × $34
= $484,500