-21.55% is the change from 116 to 91
Calculation steps:
[( 91 - 116 ) ÷ 116] x 100 = -21.55%
Formula
Percentage change = [(91 - 116) / 116] x 100
Subtract the new number by the original number
91 - 116 = -25
-25 ÷ 116 = -0.21551724137931033
-0.21551724137931033 x 100 = -21.55%