-89.52% is the change from 477 to 50
Calculation steps:
[( 50 - 477 ) ÷ 477] x 100 = -89.52%
Formula
Percentage change = [(50 - 477) / 477] x 100
Subtract the new number by the original number
50 - 477 = -427
-427 ÷ 477 = -0.8951781970649895
-0.8951781970649895 x 100 = -89.52%