-87.83% is the change from 797 to 97
Calculation steps:
[( 97 - 797 ) ÷ 797] x 100 = -87.83%
Formula
Percentage change = [(97 - 797) / 797] x 100
Subtract the new number by the original number
97 - 797 = -700
-700 ÷ 797 = -0.8782936010037641
-0.8782936010037641 x 100 = -87.83%