Postage & VAT

[Tolu_Arinze]

Hello

I am in a bit of a pickle and am hoping someone can help. My suppliers charge VAT with postage. E.g

Total cost per item + postage + vat = cost to me to buy from supplier

 I use a margin and vat calculator to calculate my margin. I have to include the postage to get the gross cost.

My issue is the postage. The price has now gone up and I can't figure out how to sort out my cost to the customer without having to manually go through each product and change the price.

How do I set the price for the customer to take into account the increase in postage prices? I offer 3 options Royal Mail, DPD and UPS.

Hope this makes sense?

Regards