The formula to calculate the Variable Margin is:
\[ \text{VM} = \frac{\text{UR} - \text{VC}}{\text{UR}} \times 100 \]
Where:
Variable Margin (VM) is a financial metric that measures the percentage of revenue that exceeds variable costs. It is calculated by subtracting variable costs from unit revenue, dividing the result by unit revenue, and then multiplying by 100 to express it as a percentage.
Let's assume the following:
Step 1: Calculate the variable margin:
\[ \text{VM} = \frac{100 - 60}{100} \times 100 = \frac{40}{100} \times 100 = 40\% \]
Therefore, the variable margin is 40%.