64.64% is the change from 526 to 866
Calculation steps:
[( 866 - 526 ) ÷ 526] x 100 = 64.64%
Formula
Percentage change = [(866 - 526) / 526] x 100
Subtract the new number by the original number
866 - 526 = 340
340 ÷ 526 = 0.6463878326996197
0.6463878326996197 x 100 = 64.64%