Why do some stores mark up their goods so much?

I am writing in regards to the upcoming introduction of VAT. I am very disappointed to see so many businesses announcing price increases.

One example is a retail store that appears to charge double the ticket price of the same goods in its home market in Europe, where 20 per cent VAT is applied. Other stores, on the other hand, appear to pass on discounts from their home territory.

I have started to shop abroad instead of here in the UAE because goods are often cheaper elsewhere.

I would prefer to shop here to support the local economy and for increased convenience, but if the shops price themselves out of the market then I am not going to.

I think it would be beneficial to talk about this further to open up some conversations. Name withheld by request