-33.54% is the change from 328 to 218
Calculation steps:
[( 218 - 328 ) ÷ 328] x 100 = -33.54%
Formula
Percentage change = [(218 - 328) / 328] x 100
Subtract the new number by the original number
218 - 328 = -110
-110 ÷ 328 = -0.3353658536585366
-0.3353658536585366 x 100 = -33.54%