-88.1% is the change from 479 to 57
Calculation steps:
[( 57 - 479 ) ÷ 479] x 100 = -88.1%
Formula
Percentage change = [(57 - 479) / 479] x 100
Subtract the new number by the original number
57 - 479 = -422
-422 ÷ 479 = -0.8810020876826722
-0.8810020876826722 x 100 = -88.1%