-16.4% is the change from 799 to 668
Calculation steps:
[( 668 - 799 ) ÷ 799] x 100 = -16.4%
Formula
Percentage change = [(668 - 799) / 799] x 100
Subtract the new number by the original number
668 - 799 = -131
-131 ÷ 799 = -0.1639549436795995
-0.1639549436795995 x 100 = -16.4%