PHP Code:
USE [SRO_VT_SHARD]
GO
UPDATE dbo._RefObjCommon
SET Price = 383*20
WHERE Price = 383
UPDATE dbo._RefObjCommon
SET SellPrice = 191*20
WHERE SellPrice = 191
UPDATE dbo._RefPricePolicyOfItem
SET Cost = 383*20
WHERE Cost = 383
Change 20 to your value, this query will change the price&rate, also you have to edit it in client side.