-3.78% is the change from 502 to 483
Calculation steps:
[( 483 - 502 ) ÷ 502] x 100 = -3.78%
Formula
Percentage change = [(483 - 502) / 502] x 100
Subtract the new number by the original number
483 - 502 = -19
-19 ÷ 502 = -0.037848605577689244
-0.037848605577689244 x 100 = -3.78%