Question

Find the absolute change and the percentage change for the given solution. 625 is decreased to 125

Answer 1

First, to find the absolute change, we simply calculate the substraction of the ending value by the starting value.

The ending value is 125 and the starting is 625, so the absolute change is:

`\begin{gathered} A=125-625 \\ A=-500 \end{gathered}`

That is, the value's absolute change is -500 or it has a decrease of 500.

To calculate the percentage change, we simply divide it by the absolute value of the starting value, then we transform to percentage by multiplying by 100%:

`P=(A)/(|625|)=-(500)/(625)=-0.8=-80\%`

So, it has a percentage change of -80%, that is, it decreased by 80%.

Answers:

Absolute change is -500

Percentage change is -80%