-17.76% is the change from 490 to 403
Calculation steps:
[( 403 - 490 ) ÷ 490] x 100 = -17.76%
Formula
Percentage change = [(403 - 490) / 490] x 100
Subtract the new number by the original number
403 - 490 = -87
-87 ÷ 490 = -0.17755102040816326
-0.17755102040816326 x 100 = -17.76%