-17.96% is the change from 501 to 411
Calculation steps:
[( 411 - 501 ) ÷ 501] x 100 = -17.96%
Formula
Percentage change = [(411 - 501) / 501] x 100
Subtract the new number by the original number
411 - 501 = -90
-90 ÷ 501 = -0.17964071856287425
-0.17964071856287425 x 100 = -17.96%