WooCommerce wrong tax calculation

I want that the price of my products include a tax with 6%. So I did that, creating a tax in WooCommerce configuration. But the calculation in the checkout is wrong, for example:

At the moment a product with a cost of 190 euros are appearing with a include tax 10.75 euros instead of appearing with 11.40 euros (6% tax).

I don't need any kind of shipping.

via Chebli Mohamed