29.26% is the change from 639 to 826
Calculation steps:
[( 826 - 639 ) ÷ 639] x 100 = 29.26%
Formula
Percentage change = [(826 - 639) / 639] x 100
Subtract the new number by the original number
826 - 639 = 187
187 ÷ 639 = 0.29264475743348983
0.29264475743348983 x 100 = 29.26%