-20.41% is the change from 681 to 542
Calculation steps:
[( 542 - 681 ) ÷ 681] x 100 = -20.41%
Formula
Percentage change = [(542 - 681) / 681] x 100
Subtract the new number by the original number
542 - 681 = -139
-139 ÷ 681 = -0.20411160058737152
-0.20411160058737152 x 100 = -20.41%