Adding shipping surcharge per item
We are using drupal commerce module in drupal 7 version. We need to add shipping surcharge per item in each product line item.
But the shipping surcharge varies for each product line item. I have seen video in drupal commerce to add common $5 to per item, but how to add different amount for each product line item?
I am new to drupal commerce, it will be a great help if anyone help me out since it is very urgent.