-90.01% is the change from 771 to 77
Calculation steps:
[( 77 - 771 ) ÷ 771] x 100 = -90.01%
Formula
Percentage change = [(77 - 771) / 771] x 100
Subtract the new number by the original number
77 - 771 = -694
-694 ÷ 771 = -0.9001297016861219
-0.9001297016861219 x 100 = -90.01%