-98.37% is the change from 799 to 13
Calculation steps:
[( 13 - 799 ) ÷ 799] x 100 = -98.37%
Formula
Percentage change = [(13 - 799) / 799] x 100
Subtract the new number by the original number
13 - 799 = -786
-786 ÷ 799 = -0.983729662077597
-0.983729662077597 x 100 = -98.37%