65.28% is the change from 386 to 638
Calculation steps:
[( 638 - 386 ) ÷ 386] x 100 = 65.28%
Formula
Percentage change = [(638 - 386) / 386] x 100
Subtract the new number by the original number
638 - 386 = 252
252 ÷ 386 = 0.6528497409326425
0.6528497409326425 x 100 = 65.28%