What is the maker taker fee for Upbit?

Can you please clarify for me what exactly is the Maker taker fee for Upbit? I understand that this is a common pricing model in cryptocurrency exchanges, but I'm not entirely sure how it applies to Upbit specifically. Is it a fixed fee or does it vary based on the trading volume? And if it's variable, could you provide me with a rough estimate of what the fees might be for a typical trade? Thank you in advance for your help.