-18.29% is the change from 164 to 134
Calculation steps:
[( 134 - 164 ) ÷ 164] x 100 = -18.29%
Formula
Percentage change = [(134 - 164) / 164] x 100
Subtract the new number by the original number
134 - 164 = -30
-30 ÷ 164 = -0.18292682926829268
-0.18292682926829268 x 100 = -18.29%