-36.21% is the change from 823 to 525
Calculation steps:
[( 525 - 823 ) ÷ 823] x 100 = -36.21%
Formula
Percentage change = [(525 - 823) / 823] x 100
Subtract the new number by the original number
525 - 823 = -298
-298 ÷ 823 = -0.362089914945322
-0.362089914945322 x 100 = -36.21%