52.82% is the change from 638 to 975
Calculation steps:
[( 975 - 638 ) ÷ 638] x 100 = 52.82%
Formula
Percentage change = [(975 - 638) / 638] x 100
Subtract the new number by the original number
975 - 638 = 337
337 ÷ 638 = 0.5282131661442007
0.5282131661442007 x 100 = 52.82%