-17.02% is the change from 329 to 273
Calculation steps:
[( 273 - 329 ) ÷ 329] x 100 = -17.02%
Formula
Percentage change = [(273 - 329) / 329] x 100
Subtract the new number by the original number
273 - 329 = -56
-56 ÷ 329 = -0.1702127659574468
-0.1702127659574468 x 100 = -17.02%