-48.78% is the change from 328 to 168
Calculation steps:
[( 168 - 328 ) ÷ 328] x 100 = -48.78%
Formula
Percentage change = [(168 - 328) / 328] x 100
Subtract the new number by the original number
168 - 328 = -160
-160 ÷ 328 = -0.4878048780487805
-0.4878048780487805 x 100 = -48.78%