48.59% is the change from 638 to 948
Calculation steps:
[( 948 - 638 ) ÷ 638] x 100 = 48.59%
Formula
Percentage change = [(948 - 638) / 638] x 100
Subtract the new number by the original number
948 - 638 = 310
310 ÷ 638 = 0.48589341692789967
0.48589341692789967 x 100 = 48.59%