-45.36% is the change from 388 to 212
Calculation steps:
[( 212 - 388 ) ÷ 388] x 100 = -45.36%
Formula
Percentage change = [(212 - 388) / 388] x 100
Subtract the new number by the original number
212 - 388 = -176
-176 ÷ 388 = -0.4536082474226804
-0.4536082474226804 x 100 = -45.36%