What percentage does bitFlyer take?

Excuse me, could you please elaborate on the specifics of the fees charged by bitFlyer? I'm particularly interested in knowing what percentage they take as a commission or fee for their services. Is there a flat rate or does it vary depending on the transaction size or type? Also, are there any hidden fees or additional costs that one should be aware of when using bitFlyer? Understanding these details is crucial for me to make an informed decision on whether to use their platform.