139.55% is the change from 268 to 642
Calculation steps:
[( 642 - 268 ) ÷ 268] x 100 = 139.55%
Formula
Percentage change = [(642 - 268) / 268] x 100
Subtract the new number by the original number
642 - 268 = 374
374 ÷ 268 = 1.3955223880597014
1.3955223880597014 x 100 = 139.55%