I think you may get a better response if you uploaded you file to Dropbox or some site similar, people do not like to have to take the time and hassle of signing in to a site just to view a file
You have quite a bit of data in your spreadsheet.....but what are you trying to achieve,you give very little idea of what it is you want to happen re the rows/columns, what do you what to change when you alter some data??
I want the charts to represent data according to :
class
period
teacher
When I click (class) data is represented according to the success percentage of all periods
When I click Period, data is represented according to the detailed marks withing each period for a specific class
When I click ( teacher ) data is represented according to the classes of the teacher and the success percentage of each period unless I click a specific period.