Answer:
Greenback Store One-Mart
Amount % Amount %
a. Sales $800,000 100% $800,000 100%
Variable cost <u>$600,000 75% $200,000 25%</u>
Contribution margin $200,000 25% $600,000 75%
Fixed cost $40,000 5% $440,000 55%
Operating profit $160,000 20% $160,000 20%
Break even point $160,000 $586,666.67
<u>Workings</u>
Greenback Store Break even point = Fixed cost / Contribution margin ratio = 40,000 / 0.25 = 160,000
One-Mart Break even point = Fixed cost / Contribution margin ratio = 440,000 / 0.75 = 586,666.67
b. <u>Greenback Store</u>
Increase in sales = $800,000*15% = $120,000
Company profit Increase by + (Increase in sales * Contribution margin ratio = 120,000 * 25% = $30,000
Thus, with the increase in 15% of sales of Greenback Store, the profit of the company increase by $30,000
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<u>One-Mart </u>
Increase in sales = $800,000*15% = $120,000
Company profit Increase by + (Increase in sales * Contribution margin ratio = 120,000 * 75% = $90,000
Thus, with the increase in 15% of sales of One-Mart , the profit of the company increase by $90,000.