-50.61% is the change from 328 to 162
Calculation steps:
[( 162 - 328 ) ÷ 328] x 100 = -50.61%
Formula
Percentage change = [(162 - 328) / 328] x 100
Subtract the new number by the original number
162 - 328 = -166
-166 ÷ 328 = -0.5060975609756098
-0.5060975609756098 x 100 = -50.61%