-0.55% is the change from 541 to 538
Calculation steps:
[( 538 - 541 ) ÷ 541] x 100 = -0.55%
Formula
Percentage change = [(538 - 541) / 541] x 100
Subtract the new number by the original number
538 - 541 = -3
-3 ÷ 541 = -0.005545286506469501
-0.005545286506469501 x 100 = -0.55%