-5.75% is the change from 348 to 328
Calculation steps:
[( 328 - 348 ) ÷ 348] x 100 = -5.75%
Formula
Percentage change = [(328 - 348) / 348] x 100
Subtract the new number by the original number
328 - 348 = -20
-20 ÷ 348 = -0.05747126436781609
-0.05747126436781609 x 100 = -5.75%