Printful's product prices include the product itself and printing, although some prints and techniques cost extra. For example, if you want a custom-printed inside label, that costs extra. Our prices don't include shipping and taxes.
We price our products in each fulfillment location so they're competitive for the market. So our products in Europe, USA, Japan, and Australia are priced a little differently.
With multiple currencies, you might notice that our prices fluctuate slightly, depending on where the order is fulfilled and the currency you're paying. For example, let's say you place an order in EUR and the product is fulfilled in the US. In this scenario, we would charge you EUR, but since the product is fulfilled in the US, we would convert the USD price to EUR.
The main thing to keep in mind is that orders that are fulfilled in the same region and currency as the end-address will have a fixed currency.