-8.78% is the change from 490 to 447
Calculation steps:
[( 447 - 490 ) ÷ 490] x 100 = -8.78%
Formula
Percentage change = [(447 - 490) / 490] x 100
Subtract the new number by the original number
447 - 490 = -43
-43 ÷ 490 = -0.08775510204081632
-0.08775510204081632 x 100 = -8.78%