151.18% is the change from 254 to 638
Calculation steps:
[( 638 - 254 ) ÷ 254] x 100 = 151.18%
Formula
Percentage change = [(638 - 254) / 254] x 100
Subtract the new number by the original number
638 - 254 = 384
384 ÷ 254 = 1.5118110236220472
1.5118110236220472 x 100 = 151.18%