-7.06% is the change from 581 to 540
Calculation steps:
[( 540 - 581 ) ÷ 581] x 100 = -7.06%
Formula
Percentage change = [(540 - 581) / 581] x 100
Subtract the new number by the original number
540 - 581 = -41
-41 ÷ 581 = -0.07056798623063683
-0.07056798623063683 x 100 = -7.06%