-51.52% is the change from 328 to 159
Calculation steps:
[( 159 - 328 ) ÷ 328] x 100 = -51.52%
Formula
Percentage change = [(159 - 328) / 328] x 100
Subtract the new number by the original number
159 - 328 = -169
-169 ÷ 328 = -0.5152439024390244
-0.5152439024390244 x 100 = -51.52%