-40.58% is the change from 823 to 489
Calculation steps:
[( 489 - 823 ) ÷ 823] x 100 = -40.58%
Formula
Percentage change = [(489 - 823) / 823] x 100
Subtract the new number by the original number
489 - 823 = -334
-334 ÷ 823 = -0.40583232077764275
-0.40583232077764275 x 100 = -40.58%