-0.73% is the change from 686 to 681
Calculation steps:
[( 681 - 686 ) ÷ 686] x 100 = -0.73%
Formula
Percentage change = [(681 - 686) / 686] x 100
Subtract the new number by the original number
681 - 686 = -5
-5 ÷ 686 = -0.007288629737609329
-0.007288629737609329 x 100 = -0.73%