-87.42% is the change from 771 to 97
Calculation steps:
[( 97 - 771 ) ÷ 771] x 100 = -87.42%
Formula
Percentage change = [(97 - 771) / 771] x 100
Subtract the new number by the original number
97 - 771 = -674
-674 ÷ 771 = -0.874189364461738
-0.874189364461738 x 100 = -87.42%