-98.12% is the change from 478 to 9
Calculation steps:
[( 9 - 478 ) ÷ 478] x 100 = -98.12%
Formula
Percentage change = [(9 - 478) / 478] x 100
Subtract the new number by the original number
9 - 478 = -469
-469 ÷ 478 = -0.9811715481171548
-0.9811715481171548 x 100 = -98.12%