-52.85% is the change from 685 to 323
Calculation steps:
[( 323 - 685 ) ÷ 685] x 100 = -52.85%
Formula
Percentage change = [(323 - 685) / 685] x 100
Subtract the new number by the original number
323 - 685 = -362
-362 ÷ 685 = -0.5284671532846715
-0.5284671532846715 x 100 = -52.85%