-20.85% is the change from 681 to 539
Calculation steps:
[( 539 - 681 ) ÷ 681] x 100 = -20.85%
Formula
Percentage change = [(539 - 681) / 681] x 100
Subtract the new number by the original number
539 - 681 = -142
-142 ÷ 681 = -0.20851688693098386
-0.20851688693098386 x 100 = -20.85%