-46.85% is the change from 999 to 531
Calculation steps:
[( 531 - 999 ) ÷ 999] x 100 = -46.85%
Formula
Percentage change = [(531 - 999) / 999] x 100
Subtract the new number by the original number
531 - 999 = -468
-468 ÷ 999 = -0.46846846846846846
-0.46846846846846846 x 100 = -46.85%