-55.39% is the change from 204 to 91
Calculation steps:
[( 91 - 204 ) ÷ 204] x 100 = -55.39%
Formula
Percentage change = [(91 - 204) / 204] x 100
Subtract the new number by the original number
91 - 204 = -113
-113 ÷ 204 = -0.553921568627451
-0.553921568627451 x 100 = -55.39%