-90.92% is the change from 848 to 77
Calculation steps:
[( 77 - 848 ) ÷ 848] x 100 = -90.92%
Formula
Percentage change = [(77 - 848) / 848] x 100
Subtract the new number by the original number
77 - 848 = -771
-771 ÷ 848 = -0.9091981132075472
-0.9091981132075472 x 100 = -90.92%