-44.71% is the change from 823 to 455
Calculation steps:
[( 455 - 823 ) ÷ 823] x 100 = -44.71%
Formula
Percentage change = [(455 - 823) / 823] x 100
Subtract the new number by the original number
455 - 823 = -368
-368 ÷ 823 = -0.4471445929526124
-0.4471445929526124 x 100 = -44.71%