-6.8% is the change from 353 to 329
Calculation steps:
[( 329 - 353 ) ÷ 353] x 100 = -6.8%
Formula
Percentage change = [(329 - 353) / 353] x 100
Subtract the new number by the original number
329 - 353 = -24
-24 ÷ 353 = -0.0679886685552408
-0.0679886685552408 x 100 = -6.8%