-86.08% is the change from 388 to 54
Calculation steps:
[( 54 - 388 ) ÷ 388] x 100 = -86.08%
Formula
Percentage change = [(54 - 388) / 388] x 100
Subtract the new number by the original number
54 - 388 = -334
-334 ÷ 388 = -0.8608247422680413
-0.8608247422680413 x 100 = -86.08%