Answer: $2.6
Explanation: As we know that, contribution is the difference between the selling price and the variable cost. Thus, contribution margin is the per unit contribution so it will be computed as follows -
[tex]contribution\:margin\:=\frac{\:selling\:price-variable\:cost}{total\:unit\:sales}[/tex]
[tex]contribution\:margin\:=\frac{\:1,035,000-\left ( 421,000+29,000 \right )}{225,000}[/tex]
$2.6