-98.11% is the change from 477 to 9
Calculation steps:
[( 9 - 477 ) ÷ 477] x 100 = -98.11%
Formula
Percentage change = [(9 - 477) / 477] x 100
Subtract the new number by the original number
9 - 477 = -468
-468 ÷ 477 = -0.9811320754716981
-0.9811320754716981 x 100 = -98.11%