-20.73% is the change from 685 to 543
Calculation steps:
[( 543 - 685 ) ÷ 685] x 100 = -20.73%
Formula
Percentage change = [(543 - 685) / 685] x 100
Subtract the new number by the original number
543 - 685 = -142
-142 ÷ 685 = -0.2072992700729927
-0.2072992700729927 x 100 = -20.73%