-68.8% is the change from 686 to 214
Calculation steps:
[( 214 - 686 ) ÷ 686] x 100 = -68.8%
Formula
Percentage change = [(214 - 686) / 686] x 100
Subtract the new number by the original number
214 - 686 = -472
-472 ÷ 686 = -0.6880466472303207
-0.6880466472303207 x 100 = -68.8%