-33.47% is the change from 493 to 328
Calculation steps:
[( 328 - 493 ) ÷ 493] x 100 = -33.47%
Formula
Percentage change = [(328 - 493) / 493] x 100
Subtract the new number by the original number
328 - 493 = -165
-165 ÷ 493 = -0.33468559837728196
-0.33468559837728196 x 100 = -33.47%