-99.09% is the change from 771 to 7
Calculation steps:
[( 7 - 771 ) ÷ 771] x 100 = -99.09%
Formula
Percentage change = [(7 - 771) / 771] x 100
Subtract the new number by the original number
7 - 771 = -764
-764 ÷ 771 = -0.9909208819714657
-0.9909208819714657 x 100 = -99.09%