-88.12% is the change from 648 to 77
Calculation steps:
[( 77 - 648 ) ÷ 648] x 100 = -88.12%
Formula
Percentage change = [(77 - 648) / 648] x 100
Subtract the new number by the original number
77 - 648 = -571
-571 ÷ 648 = -0.8811728395061729
-0.8811728395061729 x 100 = -88.12%