-75.82% is the change from 823 to 199
Calculation steps:
[( 199 - 823 ) ÷ 823] x 100 = -75.82%
Formula
Percentage change = [(199 - 823) / 823] x 100
Subtract the new number by the original number
199 - 823 = -624
-624 ÷ 823 = -0.7582017010935601
-0.7582017010935601 x 100 = -75.82%