Current Attempt in Progress

Mary's Marbles generated $\backslash (\backslash$$ $45,200\backslash )$ in total sales for the month of September. Her total variable costs were just $\backslash (\backslash$$ $22,600\backslash ),$ leaving her with total contribution margin of $\backslash (\backslash$$ $22,600\backslash ).$ The selling price per unit of marbles $($a small bag is considered a unit$)$ is $\backslash (\backslash$$ $4\backslash ).$

How many units did Mary sell that month?

Number of units sold

units

What was her variable cost per unit?

Variable costs

$\backslash$$

per unit

What was her contribution margin per unit?

Contribution margin