-4.3% is the change from 999 to 956
Calculation steps:
[( 956 - 999 ) ÷ 999] x 100 = -4.3%
Formula
Percentage change = [(956 - 999) / 999] x 100
Subtract the new number by the original number
956 - 999 = -43
-43 ÷ 999 = -0.043043043043043044
-0.043043043043043044 x 100 = -4.3%