-79.27% is the change from 164 to 34
Calculation steps:
[( 34 - 164 ) ÷ 164] x 100 = -79.27%
Formula
Percentage change = [(34 - 164) / 164] x 100
Subtract the new number by the original number
34 - 164 = -130
-130 ÷ 164 = -0.7926829268292683
-0.7926829268292683 x 100 = -79.27%