-22.22% is the change from 117 to 91
Calculation steps:
[( 91 - 117 ) ÷ 117] x 100 = -22.22%
Formula
Percentage change = [(91 - 117) / 117] x 100
Subtract the new number by the original number
91 - 117 = -26
-26 ÷ 117 = -0.2222222222222222
-0.2222222222222222 x 100 = -22.22%