-3.82% is the change from 523 to 503
Calculation steps:
[( 503 - 523 ) ÷ 523] x 100 = -3.82%
Formula
Percentage change = [(503 - 523) / 523] x 100
Subtract the new number by the original number
503 - 523 = -20
-20 ÷ 523 = -0.03824091778202677
-0.03824091778202677 x 100 = -3.82%