-20.7% is the change from 681 to 540
Calculation steps:
[( 540 - 681 ) ÷ 681] x 100 = -20.7%
Formula
Percentage change = [(540 - 681) / 681] x 100
Subtract the new number by the original number
540 - 681 = -141
-141 ÷ 681 = -0.20704845814977973
-0.20704845814977973 x 100 = -20.7%