00:01
Think back to our discussions of changes in total revenue and price and how the concept of elasticity was used.
00:07
When a firm decreases price and demand in elastic, the percentage change in quantity demanded will be a greater than or less than the percentage change in price.
00:18
Therefore, revenue will be, be increase or decrease.
00:22
If the demand is in elastic, total revenue will c, increase or decrease when price decreases.
00:28
When a firm increases price and demand is elastic, the percentage change in quantity demanded will be greater than the percentage change in price.
00:46
Therefore, revenue will increase, and if the demand is inelastic, total revenue will decrease when price decreases.
01:04
Price elasticity of demand is the percentage change in quantity over the percentage.
01:29
Change in price.
01:48
So the equation would look like this.
01:51
Percentage change of quantity over the percentage change of price.
01:55
And demand is elastic when price elasticity is greater than one.
02:23
So suppose the percentage change in quantity demanded is 10...