-99.58% is the change from 478 to 2
Calculation steps:
[( 2 - 478 ) ÷ 478] x 100 = -99.58%
Formula
Percentage change = [(2 - 478) / 478] x 100
Subtract the new number by the original number
2 - 478 = -476
-476 ÷ 478 = -0.99581589958159
-0.99581589958159 x 100 = -99.58%