Please someone explain what is rolling 12 month? Rolling 12 months sales?

[#1]

Please someone explain what is rolling 12 month? Rolling 12 months sales?

Thanks,

dj

[Anonymous]

Basically it's a look at the past 12 months. So if we now have February 2011, it's today's month minus 12 months. The difference between the rolling 12 months and a hardcoded year is that the rolling months keep updating to show the last 12 months every time the current month changes.

[#3]

Thanks Johannes ,

I am asked to show rolling 12 month sales .....

so for that I have to display 12 month data in a chart or Table....

or i have to calculate the sum of past 12 months from current month.

Thanks

dj