647.06% is the change from 34 to 254
Calculation steps:
[( 254 - 34 ) ÷ 34] x 100 = 647.06%
Formula
Percentage change = [(254 - 34) / 34] x 100
Subtract the new number by the original number
254 - 34 = 220
220 ÷ 34 = 6.470588235294118
6.470588235294118 x 100 = 647.06%