21.29% is the change from 526 to 638
Calculation steps:
[( 638 - 526 ) ÷ 526] x 100 = 21.29%
Formula
Percentage change = [(638 - 526) / 526] x 100
Subtract the new number by the original number
638 - 526 = 112
112 ÷ 526 = 0.21292775665399238
0.21292775665399238 x 100 = 21.29%