-77.16% is the change from 823 to 188
Calculation steps:
[( 188 - 823 ) ÷ 823] x 100 = -77.16%
Formula
Percentage change = [(188 - 823) / 823] x 100
Subtract the new number by the original number
188 - 823 = -635
-635 ÷ 823 = -0.7715674362089915
-0.7715674362089915 x 100 = -77.16%