How do I document task completion on the Schedule?

How do I document task completion on the Schedule?

There are two ways to update task progress. One is by double clicking on the task, when the project task box opens you can use the drop down labeled "Progress" and either type on percent complete or select from list. The second way is to place your mouse over the actual task bar in the schedule and right click on the triangle and drag it to the percent complete you want.