-1.39% is the change from 502 to 495
Calculation steps:
[( 495 - 502 ) ÷ 502] x 100 = -1.39%
Formula
Percentage change = [(495 - 502) / 502] x 100
Subtract the new number by the original number
495 - 502 = -7
-7 ÷ 502 = -0.013944223107569721
-0.013944223107569721 x 100 = -1.39%