-80.86% is the change from 162 to 31
Calculation steps:
[( 31 - 162 ) ÷ 162] x 100 = -80.86%
Formula
Percentage change = [(31 - 162) / 162] x 100
Subtract the new number by the original number
31 - 162 = -131
-131 ÷ 162 = -0.808641975308642
-0.808641975308642 x 100 = -80.86%