-52.78% is the change from 684 to 323
Calculation steps:
[( 323 - 684 ) ÷ 684] x 100 = -52.78%
Formula
Percentage change = [(323 - 684) / 684] x 100
Subtract the new number by the original number
323 - 684 = -361
-361 ÷ 684 = -0.5277777777777778
-0.5277777777777778 x 100 = -52.78%