-9.54% is the change from 388 to 351
Calculation steps:
[( 351 - 388 ) ÷ 388] x 100 = -9.54%
Formula
Percentage change = [(351 - 388) / 388] x 100
Subtract the new number by the original number
351 - 388 = -37
-37 ÷ 388 = -0.09536082474226804
-0.09536082474226804 x 100 = -9.54%