-89.82% is the change from 766 to 78
Calculation steps:
[( 78 - 766 ) ÷ 766] x 100 = -89.82%
Formula
Percentage change = [(78 - 766) / 766] x 100
Subtract the new number by the original number
78 - 766 = -688
-688 ÷ 766 = -0.8981723237597912
-0.8981723237597912 x 100 = -89.82%