Answer:
Would Decrease
Explanation:
The computation is shown below:
Particulars       C90B      Y45E      Total
Sales (A) Â Â Â Â Â Â Â Â $35,640 Â Â Â $31,680 Â Â $67,320
Variable Expenses (B) $8,910 Â Â $12,672 Â Â $21,582
Contribution ( C = A-B) $26,730 Â $19,008 Â Â $45,738
Contribution Margin Ratio
( D = C ÷  A)          75%        60%     67.94%
The break even point would be decreased as for the product C90B the contribution margin ratio is increased as compared with the product Y45E