-98.97% is the change from 778 to 8
Calculation steps:
[( 8 - 778 ) ÷ 778] x 100 = -98.97%
Formula
Percentage change = [(8 - 778) / 778] x 100
Subtract the new number by the original number
8 - 778 = -770
-770 ÷ 778 = -0.9897172236503856
-0.9897172236503856 x 100 = -98.97%