-0.73% is the change from 685 to 680
Calculation steps:
[( 680 - 685 ) ÷ 685] x 100 = -0.73%
Formula
Percentage change = [(680 - 685) / 685] x 100
Subtract the new number by the original number
680 - 685 = -5
-5 ÷ 685 = -0.0072992700729927005
-0.0072992700729927005 x 100 = -0.73%