-83.76% is the change from 388 to 63
Calculation steps:
[( 63 - 388 ) ÷ 388] x 100 = -83.76%
Formula
Percentage change = [(63 - 388) / 388] x 100
Subtract the new number by the original number
63 - 388 = -325
-325 ÷ 388 = -0.8376288659793815
-0.8376288659793815 x 100 = -83.76%