-78.01% is the change from 823 to 181
Calculation steps:
[( 181 - 823 ) ÷ 823] x 100 = -78.01%
Formula
Percentage change = [(181 - 823) / 823] x 100
Subtract the new number by the original number
181 - 823 = -642
-642 ÷ 823 = -0.7800729040097205
-0.7800729040097205 x 100 = -78.01%