How to get % of abatement and price lists stored in tally

Dear All,

Am auditing a manufacturing company, for that Excise duty applicable. They followed Excise valuation under MRP based (RSP) valuation. I want to check whether % of abatement followed by them is correct or not ?? so kindly let me know where i can get the data of abatement % alredy stored in tally ?????

And other doubt is there are lot of products selling by that company. all price lists are stored in tally. i want to check whether price lists updating time to time ?? so kindly let me know where i can get the price lists already stored in tally ????

Thanks in advance