-88.89% is the change from 486 to 54
Calculation steps:
[( 54 - 486 ) ÷ 486] x 100 = -88.89%
Formula
Percentage change = [(54 - 486) / 486] x 100
Subtract the new number by the original number
54 - 486 = -432
-432 ÷ 486 = -0.8888888888888888
-0.8888888888888888 x 100 = -88.89%