-0.29% is the change from 685 to 683
Calculation steps:
[( 683 - 685 ) ÷ 685] x 100 = -0.29%
Formula
Percentage change = [(683 - 685) / 685] x 100
Subtract the new number by the original number
683 - 685 = -2
-2 ÷ 685 = -0.00291970802919708
-0.00291970802919708 x 100 = -0.29%