-50.76% is the change from 327 to 161
Calculation steps:
[( 161 - 327 ) ÷ 327] x 100 = -50.76%
Formula
Percentage change = [(161 - 327) / 327] x 100
Subtract the new number by the original number
161 - 327 = -166
-166 ÷ 327 = -0.5076452599388379
-0.5076452599388379 x 100 = -50.76%