Question

9Find the percentage change from the first quantity to the second quantity:From 60 km/h to 45 km/h.Answer:%

Answer 1

To calculate the percentage change;

From 60km/h to 45km/h is a decrease

So we will calculate the decrease = 60 - 45 =15

Divide 15 by the original value which is 60 and then multiply by 100%

That is;

Percentage change = 15/60 x100%

=25%