-85.71% is the change from 679 to 97
Calculation steps:
[( 97 - 679 ) ÷ 679] x 100 = -85.71%
Formula
Percentage change = [(97 - 679) / 679] x 100
Subtract the new number by the original number
97 - 679 = -582
-582 ÷ 679 = -0.8571428571428571
-0.8571428571428571 x 100 = -85.71%