-99.38% is the change from 480 to 3
Calculation steps:
[( 3 - 480 ) ÷ 480] x 100 = -99.38%
Formula
Percentage change = [(3 - 480) / 480] x 100
Subtract the new number by the original number
3 - 480 = -477
-477 ÷ 480 = -0.99375
-0.99375 x 100 = -99.38%