-40% is the change from 685 to 411
Calculation steps:
[( 411 - 685 ) ÷ 685] x 100 = -40%
Formula
Percentage change = [(411 - 685) / 685] x 100
Subtract the new number by the original number
411 - 685 = -274
-274 ÷ 685 = -0.4
-0.4 x 100 = -40%
Example