-30.03% is the change from 999 to 699
Calculation steps:
[( 699 - 999 ) ÷ 999] x 100 = -30.03%
Formula
Percentage change = [(699 - 999) / 999] x 100
Subtract the new number by the original number
699 - 999 = -300
-300 ÷ 999 = -0.3003003003003003
-0.3003003003003003 x 100 = -30.03%