Question

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

Answer 1

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%`