how can I get the condition value of the sales order?

hello,experts,

I am a new learner to sd.

now I have a report want to get the invoice value and the relatived condition value of Cnty 'PR01'

AND 'ZZ03' discount value .I find the invoice value and the tax value in the table 'vbrp',

but how could I find the table which store the condition value of Cnty 'PR01'?

pls help me out.

thanks !