-1.82% is the change from 495 to 486
Calculation steps:
[( 486 - 495 ) ÷ 495] x 100 = -1.82%
Formula
Percentage change = [(486 - 495) / 495] x 100
Subtract the new number by the original number
486 - 495 = -9
-9 ÷ 495 = -0.01818181818181818
-0.01818181818181818 x 100 = -1.82%