Gaurav,
Customer expected price is usually sent in via EDI or by other means by the customer at the time of placing the order. C.types EDI1/2 are used in Standard SAP to determine the same, Alt ,Cal Type 9 is used to check the difference between the expected price and the actual price determined by SAP.
So while building your query these values should be present in the Transactional data tables (pricing tables) from where it will reflect in your query.
Thanks,