-99.21% is the change from 630 to 5
Calculation steps:
[( 5 - 630 ) ÷ 630] x 100 = -99.21%
Formula
Percentage change = [(5 - 630) / 630] x 100
Subtract the new number by the original number
5 - 630 = -625
-625 ÷ 630 = -0.9920634920634921
-0.9920634920634921 x 100 = -99.21%