-15.31% is the change from 490 to 415
Calculation steps:
[( 415 - 490 ) ÷ 490] x 100 = -15.31%
Formula
Percentage change = [(415 - 490) / 490] x 100
Subtract the new number by the original number
415 - 490 = -75
-75 ÷ 490 = -0.15306122448979592
-0.15306122448979592 x 100 = -15.31%