-19.36% is the change from 501 to 404
Calculation steps:
[( 404 - 501 ) ÷ 501] x 100 = -19.36%
Formula
Percentage change = [(404 - 501) / 501] x 100
Subtract the new number by the original number
404 - 501 = -97
-97 ÷ 501 = -0.1936127744510978
-0.1936127744510978 x 100 = -19.36%