26.24% is the change from 686 to 866
Calculation steps:
[( 866 - 686 ) ÷ 686] x 100 = 26.24%
Formula
Percentage change = [(866 - 686) / 686] x 100
Subtract the new number by the original number
866 - 686 = 180
180 ÷ 686 = 0.26239067055393583
0.26239067055393583 x 100 = 26.24%