-1.62% is the change from 494 to 486
Calculation steps:
[( 486 - 494 ) ÷ 494] x 100 = -1.62%
Formula
Percentage change = [(486 - 494) / 494] x 100
Subtract the new number by the original number
486 - 494 = -8
-8 ÷ 494 = -0.016194331983805668
-0.016194331983805668 x 100 = -1.62%