-88.63% is the change from 475 to 54
Calculation steps:
[( 54 - 475 ) ÷ 475] x 100 = -88.63%
Formula
Percentage change = [(54 - 475) / 475] x 100
Subtract the new number by the original number
54 - 475 = -421
-421 ÷ 475 = -0.8863157894736842
-0.8863157894736842 x 100 = -88.63%