-2.66% is the change from 338 to 329
Calculation steps:
[( 329 - 338 ) ÷ 338] x 100 = -2.66%
Formula
Percentage change = [(329 - 338) / 338] x 100
Subtract the new number by the original number
329 - 338 = -9
-9 ÷ 338 = -0.026627218934911243
-0.026627218934911243 x 100 = -2.66%