38.4% is the change from 638 to 883
Calculation steps:
[( 883 - 638 ) ÷ 638] x 100 = 38.4%
Formula
Percentage change = [(883 - 638) / 638] x 100
Subtract the new number by the original number
883 - 638 = 245
245 ÷ 638 = 0.384012539184953
0.384012539184953 x 100 = 38.4%