-85.82% is the change from 388 to 55
Calculation steps:
[( 55 - 388 ) ÷ 388] x 100 = -85.82%
Formula
Percentage change = [(55 - 388) / 388] x 100
Subtract the new number by the original number
55 - 388 = -333
-333 ÷ 388 = -0.8582474226804123
-0.8582474226804123 x 100 = -85.82%