Hi,
1. thank you for your feedback on this translation, we've modified it on our end. Note that translations are a community effort (we don't speakDanish) so if you want to share modifications / additional translations to the Danish translation file, you can do so via the languages tab of the HikaShop configuration on your website. You can also change that translation directly there.
2. Adding a "purchased price" to be able to calculate profit statistics is a good idea. I've added that to the todo list.
Thank you for your input.