Question

Find the percent change from 71 to 80

Please show your work

Answer 1

12.67 percent

Explanation:

To calculate percent change you use the following formula:

`(b - a)/(|a|) * 100`

a = 71 (The first value)

b = 80 (The second value)

Plug the values into the formula.

`(80 - 71)/(|71|) * 100`

`(9)/(|71|) * 100`

`0.1267 * 100`

`12.67`

The percent change is 12.67 percent.

Hope this helped! :)

Answer 2

About 12.68% increase

Explanation:

Percent change can be found using:

difference between the values/original value

Difference:

The difference between 71 and 80

80-71=9

Percent Change:

difference/original

The difference is 9, and the original is 71

9/71= 0.12676056338

Convert to a percent by multiplying by 100

0.12676056338*100=12.676056338

Round the nearest hundreth: 12.68

About 12.68% increase