241.18% is the change from 187 to 638
Calculation steps:
[( 638 - 187 ) ÷ 187] x 100 = 241.18%
Formula
Percentage change = [(638 - 187) / 187] x 100
Subtract the new number by the original number
638 - 187 = 451
451 ÷ 187 = 2.411764705882353
2.411764705882353 x 100 = 241.18%