Tracking Percentage of Completion

Has anyone had experience with tracking percentage of completion and returning a score of 100 to the LMS if the learner completed a defined percentage of the tutorial?

We currently have post status and post score actions tied to the end of our tutorials for which we have corresponding assessments. The post status action returns a value of completed for the lesson status and the post score returns a score of 100% completion to the LMS.

We have some tutorials for which there are no corresponding assessments. There is a concern that learners might skip to the end and be marked complete without having reviewed the tutorial. Any recommendations for the best way to track a percentage of completion?