15.78% is the change from 526 to 609
Calculation steps:
[( 609 - 526 ) ÷ 526] x 100 = 15.78%
Formula
Percentage change = [(609 - 526) / 526] x 100
Subtract the new number by the original number
609 - 526 = 83
83 ÷ 526 = 0.15779467680608364
0.15779467680608364 x 100 = 15.78%