-81.23% is the change from 799 to 150
Calculation steps:
[( 150 - 799 ) ÷ 799] x 100 = -81.23%
Formula
Percentage change = [(150 - 799) / 799] x 100
Subtract the new number by the original number
150 - 799 = -649
-649 ÷ 799 = -0.8122653316645807
-0.8122653316645807 x 100 = -81.23%