-84.73% is the change from 131 to 20
Calculation steps:
[( 20 - 131 ) ÷ 131] x 100 = -84.73%
Formula
Percentage change = [(20 - 131) / 131] x 100
Subtract the new number by the original number
20 - 131 = -111
-111 ÷ 131 = -0.8473282442748091
-0.8473282442748091 x 100 = -84.73%