24.26% is the change from 639 to 794
Calculation steps:
[( 794 - 639 ) ÷ 639] x 100 = 24.26%
Formula
Percentage change = [(794 - 639) / 639] x 100
Subtract the new number by the original number
794 - 639 = 155
155 ÷ 639 = 0.24256651017214398
0.24256651017214398 x 100 = 24.26%