-96.64% is the change from 684 to 23
Calculation steps:
[( 23 - 684 ) ÷ 684] x 100 = -96.64%
Formula
Percentage change = [(23 - 684) / 684] x 100
Subtract the new number by the original number
23 - 684 = -661
-661 ÷ 684 = -0.966374269005848
-0.966374269005848 x 100 = -96.64%