-88.24% is the change from 34 to 4
Calculation steps:
[( 4 - 34 ) ÷ 34] x 100 = -88.24%
Formula
Percentage change = [(4 - 34) / 34] x 100
Subtract the new number by the original number
4 - 34 = -30
-30 ÷ 34 = -0.8823529411764706
-0.8823529411764706 x 100 = -88.24%