-69.88% is the change from 684 to 206
Calculation steps:
[( 206 - 684 ) ÷ 684] x 100 = -69.88%
Formula
Percentage change = [(206 - 684) / 684] x 100
Subtract the new number by the original number
206 - 684 = -478
-478 ÷ 684 = -0.6988304093567251
-0.6988304093567251 x 100 = -69.88%