-70.12% is the change from 686 to 205
Calculation steps:
[( 205 - 686 ) ÷ 686] x 100 = -70.12%
Formula
Percentage change = [(205 - 686) / 686] x 100
Subtract the new number by the original number
205 - 686 = -481
-481 ÷ 686 = -0.7011661807580175
-0.7011661807580175 x 100 = -70.12%