-32.79% is the change from 488 to 328
Calculation steps:
[( 328 - 488 ) ÷ 488] x 100 = -32.79%
Formula
Percentage change = [(328 - 488) / 488] x 100
Subtract the new number by the original number
328 - 488 = -160
-160 ÷ 488 = -0.32786885245901637
-0.32786885245901637 x 100 = -32.79%