-99.09% is the change from 330 to 3
Calculation steps:
[( 3 - 330 ) ÷ 330] x 100 = -99.09%
Formula
Percentage change = [(3 - 330) / 330] x 100
Subtract the new number by the original number
3 - 330 = -327
-327 ÷ 330 = -0.990909090909091
-0.990909090909091 x 100 = -99.09%