-33.06% is the change from 490 to 328
Calculation steps:
[( 328 - 490 ) ÷ 490] x 100 = -33.06%
Formula
Percentage change = [(328 - 490) / 490] x 100
Subtract the new number by the original number
328 - 490 = -162
-162 ÷ 490 = -0.3306122448979592
-0.3306122448979592 x 100 = -33.06%