17.64% is the change from 686 to 807
Calculation steps:
[( 807 - 686 ) ÷ 686] x 100 = 17.64%
Formula
Percentage change = [(807 - 686) / 686] x 100
Subtract the new number by the original number
807 - 686 = 121
121 ÷ 686 = 0.17638483965014579
0.17638483965014579 x 100 = 17.64%