-87.53% is the change from 778 to 97
Calculation steps:
[( 97 - 778 ) ÷ 778] x 100 = -87.53%
Formula
Percentage change = [(97 - 778) / 778] x 100
Subtract the new number by the original number
97 - 778 = -681
-681 ÷ 778 = -0.8753213367609255
-0.8753213367609255 x 100 = -87.53%