-51.67% is the change from 329 to 159
Calculation steps:
[( 159 - 329 ) ÷ 329] x 100 = -51.67%
Formula
Percentage change = [(159 - 329) / 329] x 100
Subtract the new number by the original number
159 - 329 = -170
-170 ÷ 329 = -0.5167173252279635
-0.5167173252279635 x 100 = -51.67%