-78.13% is the change from 823 to 180
Calculation steps:
[( 180 - 823 ) ÷ 823] x 100 = -78.13%
Formula
Percentage change = [(180 - 823) / 823] x 100
Subtract the new number by the original number
180 - 823 = -643
-643 ÷ 823 = -0.7812879708383961
-0.7812879708383961 x 100 = -78.13%