-55.56% is the change from 225 to 100
Calculation steps:
[( 100 - 225 ) ÷ 225] x 100 = -55.56%
Formula
Percentage change = [(100 - 225) / 225] x 100
Subtract the new number by the original number
100 - 225 = -125
-125 ÷ 225 = -0.5555555555555556
-0.5555555555555556 x 100 = -55.56%