-70.14% is the change from 690 to 206
Calculation steps:
[( 206 - 690 ) ÷ 690] x 100 = -70.14%
Formula
Percentage change = [(206 - 690) / 690] x 100
Subtract the new number by the original number
206 - 690 = -484
-484 ÷ 690 = -0.7014492753623188
-0.7014492753623188 x 100 = -70.14%