Estimated time left?

So, I have a unique situation... and although this feature is 'optional'..i'd still like to see it.

I have a program that reads from a database...

the database pulls its info from a site.

it measures in 0 to 100 (%).

I know it takes 3 days (i dont know if its EXACTLY 72hrs)..to get to 100%.

Currently, i have a progressbar to read from the database field..which is the value.

I'd like to 'estimate' the time left before it reaches 100...

Is there a math formula for that?

thanks.

Ok... heres a Q...

vb Code:

Dim timeleft As Integer
            timeleft = 100 - RadProgressBar1.Value1 * 2592 / 60 / 60

(value is 91)

should come out to: 6.48

HOWEVER, debug says: 34

....

nm..i got it. i had to break it down more for the computer.

"... ..which is the value." means??? If you were reading a file or DB from start to end, and knew the total size the estimate of time remaining would be a simple matter, but that isn't what you are doing is it?