What table and field does Moodle store the individual course cost in? I am using hte Paypal plugin for 2.2.1 and I see where Moodle stores the default course cost. But you can over ride that in each course if you like. I just can't find where Moodle stores the over ride or individual course cost. Does anyone know? Thanks.
Was this question ever answered? I'm trying to find out the same thing.
If you have access to PHPMyAdmin or other way to read the database, you can see that table mdl_enrol has a line per course per enrollment method.
Each Paypal method has a field called cost, which you fill in when you set up Paypal enrollment as a method for that course.
There is also a table which has a list of which users have paid - mdl_enrol_paypal
There may be a slight difference for 2.2 (I am using 2.5 mostly), so check please. Also replace mdl_ with whatever prefix you chose for the database (if you changed it during installation)