-36.45% is the change from 823 to 523
Calculation steps:
[( 523 - 823 ) ÷ 823] x 100 = -36.45%
Formula
Percentage change = [(523 - 823) / 823] x 100
Subtract the new number by the original number
523 - 823 = -300
-300 ÷ 823 = -0.3645200486026732
-0.3645200486026732 x 100 = -36.45%