-90.86% is the change from 897 to 82
Calculation steps:
[( 82 - 897 ) ÷ 897] x 100 = -90.86%
Formula
Percentage change = [(82 - 897) / 897] x 100
Subtract the new number by the original number
82 - 897 = -815
-815 ÷ 897 = -0.9085841694537347
-0.9085841694537347 x 100 = -90.86%