-40.58% is the change from 685 to 407
Calculation steps:
[( 407 - 685 ) ÷ 685] x 100 = -40.58%
Formula
Percentage change = [(407 - 685) / 685] x 100
Subtract the new number by the original number
407 - 685 = -278
-278 ÷ 685 = -0.4058394160583942
-0.4058394160583942 x 100 = -40.58%