-4.06% is the change from 542 to 520
Calculation steps:
[( 520 - 542 ) ÷ 542] x 100 = -4.06%
Formula
Percentage change = [(520 - 542) / 542] x 100
Subtract the new number by the original number
520 - 542 = -22
-22 ÷ 542 = -0.04059040590405904
-0.04059040590405904 x 100 = -4.06%