How to get old manual values entered in sales order

Dear members.

User Create income bid based connected contract.

prices are carried retired manually successful contract, those values are copied to Sales order.

But, idiosyncratic utilized VA05 and did wide update--> pricing update --> B -- Carry retired caller pricing.

Then Prices are became for immoderate and for different it took information records values.

now, however could I get aged values successful pricing.

Thanks,

Reddy Krishna.