-88.96% is the change from 308 to 34
Calculation steps:
[( 34 - 308 ) ÷ 308] x 100 = -88.96%
Formula
Percentage change = [(34 - 308) / 308] x 100
Subtract the new number by the original number
34 - 308 = -274
-274 ÷ 308 = -0.8896103896103896
-0.8896103896103896 x 100 = -88.96%