-35.56% is the change from 824 to 531
Calculation steps:
[( 531 - 824 ) ÷ 824] x 100 = -35.56%
Formula
Percentage change = [(531 - 824) / 824] x 100
Subtract the new number by the original number
531 - 824 = -293
-293 ÷ 824 = -0.35558252427184467
-0.35558252427184467 x 100 = -35.56%