-93.13% is the change from 131 to 9
Calculation steps:
[( 9 - 131 ) ÷ 131] x 100 = -93.13%
Formula
Percentage change = [(9 - 131) / 131] x 100
Subtract the new number by the original number
9 - 131 = -122
-122 ÷ 131 = -0.9312977099236641
-0.9312977099236641 x 100 = -93.13%