-33.9% is the change from 823 to 544
Calculation steps:
[( 544 - 823 ) ÷ 823] x 100 = -33.9%
Formula
Percentage change = [(544 - 823) / 823] x 100
Subtract the new number by the original number
544 - 823 = -279
-279 ÷ 823 = -0.33900364520048604
-0.33900364520048604 x 100 = -33.9%