Need help on the opencart about the price changing in the cart

My price changes as per the customer login i am successful to change in the product display but what i now need is that how do i make changes in the cart and the confirm page.

I have added the "product_price_customer" table in the database and which contain the

CREATE TABLE IF NOT EXISTS `product_price_customer` (
`product_price_customer_id` int(11) NOT NULL AUTO_INCREMENT,
`product_id` int(11) NOT NULL,
`price` float NOT NULL,
`customer_id` int(11) NOT NULL,
PRIMARY KEY (`ppc_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ;


Need Quick Help

Thanking You

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