-99.23% is the change from 649 to 5
Calculation steps:
[( 5 - 649 ) ÷ 649] x 100 = -99.23%
Formula
Percentage change = [(5 - 649) / 649] x 100
Subtract the new number by the original number
5 - 649 = -644
-644 ÷ 649 = -0.9922958397534669
-0.9922958397534669 x 100 = -99.23%