85.29% is the change from 34 to 63
Calculation steps:
[( 63 - 34 ) ÷ 34] x 100 = 85.29%
Formula
Percentage change = [(63 - 34) / 34] x 100
Subtract the new number by the original number
63 - 34 = 29
29 ÷ 34 = 0.8529411764705882
0.8529411764705882 x 100 = 85.29%