-8.37% is the change from 490 to 449
Calculation steps:
[( 449 - 490 ) ÷ 490] x 100 = -8.37%
Formula
Percentage change = [(449 - 490) / 490] x 100
Subtract the new number by the original number
449 - 490 = -41
-41 ÷ 490 = -0.0836734693877551
-0.0836734693877551 x 100 = -8.37%