-17.63% is the change from 329 to 271
Calculation steps:
[( 271 - 329 ) ÷ 329] x 100 = -17.63%
Formula
Percentage change = [(271 - 329) / 329] x 100
Subtract the new number by the original number
271 - 329 = -58
-58 ÷ 329 = -0.1762917933130699
-0.1762917933130699 x 100 = -17.63%