Hello
I am trying to update an activity and have a basic question

The activitys scheduled start date (based on what ms office automatically scheduled) was nov 15, 2011. And I had given it a duration of 21 days at that time so it was supposed to finish dec 13 2011. But now, as of january 26 2012 it is still not complete and we anticipate there is still 1-2 weeks to go. when i update the task as of now, which column should i update?

when i write into actual duration column, and make it 60 days, so that it finished 1-2 weeks from now, it automatically makes the %complete to 100 but it is not 100% complete. It is about 80%

but if i only update the % complete to 80 then it doesnt do anything to the finish date and still shows it as dec 13 which is a past date and the task is not finished. it doesnt do anything to 21 days duration and makes actual duration 12.6 days but this is wrong because the activity goes on since november thus have much more duration.

so again, which column or columns should i update?

so which column or columns should i update?