How to Gather the Progress Percentages of the Users in SCORM2004?

Hello Everyone,

I will upload my storyline project to a website with a system that uses SCORM2004 for the courses. However, they said they want to get the % information in the system when the user closes the course.

For example, there are 20 slides, and when the user closes the course on the 10th slide, before entering the class there should be information (incomplete & %50 is finished). 

So, I am asking you all which javascript codes I should use If I had to or which LMS setting I have to set up.

Thanks in Advance.