-28.91% is the change from 685 to 487
Calculation steps:
[( 487 - 685 ) ÷ 685] x 100 = -28.91%
Formula
Percentage change = [(487 - 685) / 685] x 100
Subtract the new number by the original number
487 - 685 = -198
-198 ÷ 685 = -0.28905109489051095
-0.28905109489051095 x 100 = -28.91%