# What is the percent increase when 7,200 increases by 1,800?

Jul 28, 2016

Increase is 25%.

#### Explanation:

Percentage increase/decrease is calculated by dividing increase/decrease by the amount over which this increase/decrease takes place and multiplying it by $100$.

As there is an increase of $1800$ over $7200$, the percentage increase is

1800/7200×100

= 18/72×100

= (1cancel(18))/(4cancel(72))×100

= 1/(1cancel4)×25cancel(100)

= 25%