-96.61% is the change from 501 to 17
Calculation steps:
[( 17 - 501 ) ÷ 501] x 100 = -96.61%
Formula
Percentage change = [(17 - 501) / 501] x 100
Subtract the new number by the original number
17 - 501 = -484
-484 ÷ 501 = -0.9660678642714571
-0.9660678642714571 x 100 = -96.61%