-4.01% is the change from 524 to 503
Calculation steps:
[( 503 - 524 ) ÷ 524] x 100 = -4.01%
Formula
Percentage change = [(503 - 524) / 524] x 100
Subtract the new number by the original number
503 - 524 = -21
-21 ÷ 524 = -0.04007633587786259
-0.04007633587786259 x 100 = -4.01%