-69.93% is the change from 685 to 206
Calculation steps:
[( 206 - 685 ) ÷ 685] x 100 = -69.93%
Formula
Percentage change = [(206 - 685) / 685] x 100
Subtract the new number by the original number
206 - 685 = -479
-479 ÷ 685 = -0.6992700729927007
-0.6992700729927007 x 100 = -69.93%