How much is a rune worth?

Excuse me, could you kindly elaborate on the value of a rune in the cryptocurrency market? I understand that runes are often associated with digital currencies and blockchain technology, but I'm uncertain about their specific monetary worth. Could you provide some insight into how the value of a rune is determined and what factors contribute to its price fluctuations? Additionally, is there a reliable source where I can stay updated on the latest rune prices and market trends? Thank you for your time and assistance.