68.46% is the change from 149 to 251
Calculation steps:
[( 251 - 149 ) ÷ 149] x 100 = 68.46%
Formula
Percentage change = [(251 - 149) / 149] x 100
Subtract the new number by the original number
251 - 149 = 102
102 ÷ 149 = 0.6845637583892618
0.6845637583892618 x 100 = 68.46%