-6.47% is the change from 541 to 506
Calculation steps:
[( 506 - 541 ) ÷ 541] x 100 = -6.47%
Formula
Percentage change = [(506 - 541) / 541] x 100
Subtract the new number by the original number
506 - 541 = -35
-35 ÷ 541 = -0.06469500924214418
-0.06469500924214418 x 100 = -6.47%