What is the relation between PED and total revenue?

Price Elasticity of Demand (PED) measures how sensitive the quantity demanded of a good is to a change in its price. When demand is elastic (PED > 1), a decrease in price leads to a proportionally larger increase in quantity demanded, resulting in an increase in total revenue. Conversely, when demand is inelastic (PED < 1), a decrease in price results in a smaller increase in quantity demanded, leading to a decrease in total revenue. If demand is unitary elastic (PED = 1), total revenue remains unchanged when prices change.