Updating drupal commerce price dynamically using views

Dear Firends,

I am confuse to solve a problem.
Situation is.

I have use drupal commerce cart and having multiple products.

Product a : Price Rs1000
product b : price Rs1500

But after doing some calculation on product in views the calculated price for
Product a : Rs1250
Product a : Rs1750

Now when i click on "add to cart" button and now on cart page its showing the actual price
1000 & 1500
But i need the calculated price only which is
1250 & 1750 respectivily.

Please help me / Suggest me the solution how i can update the commerce price with calculated values for the particular session,user,product wise.

Posted: Feb 10, 2014