-90.08% is the change from 131 to 13
Calculation steps:
[( 13 - 131 ) ÷ 131] x 100 = -90.08%
Formula
Percentage change = [(13 - 131) / 131] x 100
Subtract the new number by the original number
13 - 131 = -118
-118 ÷ 131 = -0.9007633587786259
-0.9007633587786259 x 100 = -90.08%