-90.69% is the change from 827 to 77
Calculation steps:
[( 77 - 827 ) ÷ 827] x 100 = -90.69%
Formula
Percentage change = [(77 - 827) / 827] x 100
Subtract the new number by the original number
77 - 827 = -750
-750 ÷ 827 = -0.9068923821039904
-0.9068923821039904 x 100 = -90.69%