Degree of operating leverage (DOL) measures operating risk. It is the ratio of the percentage change in operating income to the percentage change in quantity sold.
where:
Q: Quantity sold,
P: Unit price,
V: Variable cost per unit,
F: Fixed operating costs
S: Dollar amount of sales,
TVC: total variable costs,
Degree of financial leverage (DFL) measures financial risk. It is the ratio of percentage change in net income to percentage change in operating income.
where:
Q: Quantity sold,
P: Unit price,
V: Variable cost per unit,
F: Fixed costs
I: Fixed financial costs
Degree of total leverage (DTL) combines DOL and DFL. It is the ratio of percentage change in net income to percentage change in units sold.