-70.91% is the change from 684 to 199
Calculation steps:
[( 199 - 684 ) ÷ 684] x 100 = -70.91%
Formula
Percentage change = [(199 - 684) / 684] x 100
Subtract the new number by the original number
199 - 684 = -485
-485 ÷ 684 = -0.7090643274853801
-0.7090643274853801 x 100 = -70.91%