-88.5% is the change from 800 to 92
Calculation steps:
[( 92 - 800 ) ÷ 800] x 100 = -88.5%
Formula
Percentage change = [(92 - 800) / 800] x 100
Subtract the new number by the original number
92 - 800 = -708
-708 ÷ 800 = -0.885
-0.885 x 100 = -88.5%
Example