How much is 800 Robux?

Excuse me, could you please clarify for me the value of 800 Robux in terms of a more universally recognized currency? I understand that Robux is the virtual currency used in the Roblox platform, but I'm having difficulty gauging its exact worth compared to, say, US dollars or other global currencies. Could you provide me with a rough estimate or explain how I might go about converting this amount to a more tangible financial value? Thank you for your assistance.