-90.28% is the change from 648 to 63
Calculation steps:
[( 63 - 648 ) ÷ 648] x 100 = -90.28%
Formula
Percentage change = [(63 - 648) / 648] x 100
Subtract the new number by the original number
63 - 648 = -585
-585 ÷ 648 = -0.9027777777777778
-0.9027777777777778 x 100 = -90.28%