-81.91% is the change from 188 to 34
Calculation steps:
[( 34 - 188 ) ÷ 188] x 100 = -81.91%
Formula
Percentage change = [(34 - 188) / 188] x 100
Subtract the new number by the original number
34 - 188 = -154
-154 ÷ 188 = -0.8191489361702128
-0.8191489361702128 x 100 = -81.91%