The contribution margin income statement of Westlake Coffee
Solution
Requirement 1 :
Monthly breakeven point in the number of small coffees and large coffees:
Formula for Breakeven Point in sales unit =
(Fixed Cost + Target Income ) / Weighted Avg CM per unit
Now, Calculation of Weighted Avg CM per unit:
Total CM per unit = $ 4.50 + $ 2.50 = $ 7.00
Weighted Avg CM Per unit = $ 7 / 4 = $ 1.75
Breakeven Sales = (Fixed cost + Target Income) / Weighted Avg CM per unit
= $ 42,000 / $ 1.75 = 24,000
Breakeven Sales in Small Coffees = 24,000 * 3/4 = 18,000
Breakeven Sales in Large Coffees = 24,000 * 1/4 = 6,000
Summary Contribution Margin Income Statement:
Requirement 2 : Coffee Shop\'s Margin Of Safety:
Formula : Actual Sales - Breakeven Point = Margin of Safety in dollars
Margin of Safety = $ 144,000 - ( $ 18000 * 3 + $ 6000 * 5)
= $ 144,000 - ( $ 54000 + $ 30000)
= $ 144000 - $ 84000
= $ 60000
Requirement 3 : Computation of Operating Leverage Factor
Formula : % Change in Net Operating Income / % Change in Sales = Operating Leverage Factor
Operating Leverage Factor = 26.40% / 11% = 2.40
Effects on Operating Income of 11 % Increase in Sales
New Operating Income after increase = $ 37,920
Increase in Operating Income = 26.40% i.e. $ 7920
Thank You
| Particulars | Small Coffee ($) | Large Coffee ($) |
| Sales Price per unit | 3.00 | 5.00 |
| Less : Variable Cost per unit | 1.50 | 2.50 |
| Contribution Margin (CM) | 1.50 | 2.50 |

