-89.98% is the change from 479 to 48
Calculation steps:
[( 48 - 479 ) ÷ 479] x 100 = -89.98%
Formula
Percentage change = [(48 - 479) / 479] x 100
Subtract the new number by the original number
48 - 479 = -431
-431 ÷ 479 = -0.8997912317327766
-0.8997912317327766 x 100 = -89.98%