43.89% is the change from 638 to 918
Calculation steps:
[( 918 - 638 ) ÷ 638] x 100 = 43.89%
Formula
Percentage change = [(918 - 638) / 638] x 100
Subtract the new number by the original number
918 - 638 = 280
280 ÷ 638 = 0.438871473354232
0.438871473354232 x 100 = 43.89%