Shopify sales orders are importing with incorrect amounts. 

The Shopify shop is set to not calculate VAT when the country in Khaos Control Cloud is set to calculate VAT or the items are set to calculate VAT.

Either correcting the shopify shop to calculate VAT or to make sure the items that you sell are 0 vat or changing the country in [ System Setup | System Data | Countries ] to not pay VAT.

You need to make sure that sales orders for the rest of the world don't pay tax by un-ticking the Tax column for the country, or countries, in  [ System Setup | System Data | Countries ].