This document discusses three types of leverage: operating, financial, and combined.
Operating leverage is defined as the percentage change in earnings before interest and taxes (EBIT) divided by the percentage change in sales. Financial leverage is defined as the percentage change in earnings per share (EPS) divided by the percentage change in EBIT. Combined leverage is the product of operating leverage and financial leverage, and represents the overall financial risk of a company. The document provides formulas for calculating each type of leverage and notes that high operating leverage combined with high financial leverage poses the greatest risk.