-33.86% is the change from 502 to 332
Calculation steps:
[( 332 - 502 ) ÷ 502] x 100 = -33.86%
Formula
Percentage change = [(332 - 502) / 502] x 100
Subtract the new number by the original number
332 - 502 = -170
-170 ÷ 502 = -0.3386454183266932
-0.3386454183266932 x 100 = -33.86%