-16.78% is the change from 602 to 501
Calculation steps:
[( 501 - 602 ) ÷ 602] x 100 = -16.78%
Formula
Percentage change = [(501 - 602) / 602] x 100
Subtract the new number by the original number
501 - 602 = -101
-101 ÷ 602 = -0.16777408637873753
-0.16777408637873753 x 100 = -16.78%