-98.1% is the change from 473 to 9
Calculation steps:
[( 9 - 473 ) ÷ 473] x 100 = -98.1%
Formula
Percentage change = [(9 - 473) / 473] x 100
Subtract the new number by the original number
9 - 473 = -464
-464 ÷ 473 = -0.9809725158562368
-0.9809725158562368 x 100 = -98.1%