-77.04% is the change from 823 to 189
Calculation steps:
[( 189 - 823 ) ÷ 823] x 100 = -77.04%
Formula
Percentage change = [(189 - 823) / 823] x 100
Subtract the new number by the original number
189 - 823 = -634
-634 ÷ 823 = -0.7703523693803159
-0.7703523693803159 x 100 = -77.04%