Rusty Co$.$ sells two products: X and Y$.$ Last year, Rusty sold $5,000$ units of X and $35,000$ units of Y$.$ Related data are as follows:

Unit Selling

Unit Variable

Unit Contribution

Product

Price

Cost

Margin

X

$$110$

$$70$

$$40$

Y

$70$

$50$

$20$

For break$-$even analysis, the unit selling price of $E$ was

$$75$

$$110$

$$100$

$$180$