I am having Magento ver. 22.214.171.124 with Multi-Website and Multi-currency website, We are facing our issue of Tax being not calculated correctly in front-end and in the back-end. See my below configuration setting in admin side under.
System >> Configuration >> Sales >> Tax
I am having one product text_product_03 which have selling price and product price 80 GBP and 100 GBP respectively, please see the snap below, as you seen instead of showing 20.00 GBP it shows 16.67 GBP, and due to that, the order calculation gets wrong in front-end.
I have also checked the same issue there in Magento Fresh version to 126.96.36.199.So could you please help me out what was wrong here? Do you have any suggestion or solutions which will help me out to solve this issue, If yes please share with me so I will check that and will solve it out.