-99.54% is the change from 650 to 3
Calculation steps:
[( 3 - 650 ) ÷ 650] x 100 = -99.54%
Formula
Percentage change = [(3 - 650) / 650] x 100
Subtract the new number by the original number
3 - 650 = -647
-647 ÷ 650 = -0.9953846153846154
-0.9953846153846154 x 100 = -99.54%