Ravmasta
May 15, 2007, 10:14 AM
How do you generally calculate the percentage error?
How do you generally calculate the percentage difference?
ebaines
May 15, 2007, 02:34 PM
For percentage error see:
Mean absolute percentage error - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Mean_Absolute_Percentage_Error)
For percentage difference - it's the difference between two numbers divided by the original number. Thus if you start with a value A, the percentage difference between A and B is 100*(B-A)/A.