Question

Spotlight Dance increased the number of dancers on its competition team. Last

season, there were 10 dancers this season, there were 18. What was the perecent
of increase?​

Answer 1

80%

Explanation:

To find percentage increase, we use the following formula:

Percentage Increase =
`(New-Old)/(Old)*100`

Here

New means the latest value (which is 18 dancers)

Old means the previous value (which is 10 dancers)

The Multiplication by 100 is to convert the decimal answer to percentage.

So, we have:

New = 18

Old = 10

Now we substitute and find:

`(New-Old)/(Old)*100\\(18-10)/(10)*100\\(8)/(10)*100\\80`

So, there was an increase of 80%