-2.24% is the change from 490 to 479
Calculation steps:
[( 479 - 490 ) ÷ 490] x 100 = -2.24%
Formula
Percentage change = [(479 - 490) / 490] x 100
Subtract the new number by the original number
479 - 490 = -11
-11 ÷ 490 = -0.022448979591836733
-0.022448979591836733 x 100 = -2.24%