-89.88% is the change from 771 to 78
Calculation steps:
[( 78 - 771 ) ÷ 771] x 100 = -89.88%
Formula
Percentage change = [(78 - 771) / 771] x 100
Subtract the new number by the original number
78 - 771 = -693
-693 ÷ 771 = -0.8988326848249028
-0.8988326848249028 x 100 = -89.88%