-2.67% is the change from 337 to 328
Calculation steps:
[( 328 - 337 ) ÷ 337] x 100 = -2.67%
Formula
Percentage change = [(328 - 337) / 337] x 100
Subtract the new number by the original number
328 - 337 = -9
-9 ÷ 337 = -0.026706231454005934
-0.026706231454005934 x 100 = -2.67%