-42.68% is the change from 328 to 188
Calculation steps:
[( 188 - 328 ) ÷ 328] x 100 = -42.68%
Formula
Percentage change = [(188 - 328) / 328] x 100
Subtract the new number by the original number
188 - 328 = -140
-140 ÷ 328 = -0.4268292682926829
-0.4268292682926829 x 100 = -42.68%