-85.5% is the change from 131 to 19
Calculation steps:
[( 19 - 131 ) ÷ 131] x 100 = -85.5%
Formula
Percentage change = [(19 - 131) / 131] x 100
Subtract the new number by the original number
19 - 131 = -112
-112 ÷ 131 = -0.8549618320610687
-0.8549618320610687 x 100 = -85.5%