68.34% is the change from 379 to 638
Calculation steps:
[( 638 - 379 ) ÷ 379] x 100 = 68.34%
Formula
Percentage change = [(638 - 379) / 379] x 100
Subtract the new number by the original number
638 - 379 = 259
259 ÷ 379 = 0.683377308707124
0.683377308707124 x 100 = 68.34%