-23.31% is the change from 429 to 329
Calculation steps:
[( 329 - 429 ) ÷ 429] x 100 = -23.31%
Formula
Percentage change = [(329 - 429) / 429] x 100
Subtract the new number by the original number
329 - 429 = -100
-100 ÷ 429 = -0.2331002331002331
-0.2331002331002331 x 100 = -23.31%