-83.47% is the change from 502 to 83
Calculation steps:
[( 83 - 502 ) ÷ 502] x 100 = -83.47%
Formula
Percentage change = [(83 - 502) / 502] x 100
Subtract the new number by the original number
83 - 502 = -419
-419 ÷ 502 = -0.8346613545816733
-0.8346613545816733 x 100 = -83.47%