-70.01% is the change from 687 to 206
Calculation steps:
[( 206 - 687 ) ÷ 687] x 100 = -70.01%
Formula
Percentage change = [(206 - 687) / 687] x 100
Subtract the new number by the original number
206 - 687 = -481
-481 ÷ 687 = -0.7001455604075691
-0.7001455604075691 x 100 = -70.01%