-3.8% is the change from 342 to 329
Calculation steps:
[( 329 - 342 ) ÷ 342] x 100 = -3.8%
Formula
Percentage change = [(329 - 342) / 342] x 100
Subtract the new number by the original number
329 - 342 = -13
-13 ÷ 342 = -0.038011695906432746
-0.038011695906432746 x 100 = -3.8%