-56.66% is the change from 999 to 433
Calculation steps:
[( 433 - 999 ) ÷ 999] x 100 = -56.66%
Formula
Percentage change = [(433 - 999) / 999] x 100
Subtract the new number by the original number
433 - 999 = -566
-566 ÷ 999 = -0.5665665665665666
-0.5665665665665666 x 100 = -56.66%