-17.14% is the change from 490 to 406
Calculation steps:
[( 406 - 490 ) ÷ 490] x 100 = -17.14%
Formula
Percentage change = [(406 - 490) / 490] x 100
Subtract the new number by the original number
406 - 490 = -84
-84 ÷ 490 = -0.17142857142857143
-0.17142857142857143 x 100 = -17.14%