-8.57% is the change from 490 to 448
Calculation steps:
[( 448 - 490 ) ÷ 490] x 100 = -8.57%
Formula
Percentage change = [(448 - 490) / 490] x 100
Subtract the new number by the original number
448 - 490 = -42
-42 ÷ 490 = -0.08571428571428572
-0.08571428571428572 x 100 = -8.57%