-36.94% is the change from 823 to 519
Calculation steps:
[( 519 - 823 ) ÷ 823] x 100 = -36.94%
Formula
Percentage change = [(519 - 823) / 823] x 100
Subtract the new number by the original number
519 - 823 = -304
-304 ÷ 823 = -0.36938031591737547
-0.36938031591737547 x 100 = -36.94%