-36.56% is the change from 837 to 531
Calculation steps:
[( 531 - 837 ) ÷ 837] x 100 = -36.56%
Formula
Percentage change = [(531 - 837) / 837] x 100
Subtract the new number by the original number
531 - 837 = -306
-306 ÷ 837 = -0.3655913978494624
-0.3655913978494624 x 100 = -36.56%