-97.25% is the change from 837 to 23
Calculation steps:
[( 23 - 837 ) ÷ 837] x 100 = -97.25%
Formula
Percentage change = [(23 - 837) / 837] x 100
Subtract the new number by the original number
23 - 837 = -814
-814 ÷ 837 = -0.972520908004779
-0.972520908004779 x 100 = -97.25%