0.25 to 0.5 find the percent of change. round to the nearest tenth of a percent if necessary.

25%  just like money 25 50 75 1.00    same thing just going from .25 to .5   so 25%

0.25-0.5=0.20. If you multiply hat by 100 you would get 20.0 and that is your answer. 20%. Hoped I helped! (You don't need to round because it is all ready a straight number ending in zero.)

Use a calculator basically

If your asking how much altogether for 12 performance the answer will be 98,496.