-15.02% is the change from 999 to 849
Calculation steps:
[( 849 - 999 ) ÷ 999] x 100 = -15.02%
Formula
Percentage change = [(849 - 999) / 999] x 100
Subtract the new number by the original number
849 - 999 = -150
-150 ÷ 999 = -0.15015015015015015
-0.15015015015015015 x 100 = -15.02%