How much is 3000 credits in Rocket League?

Excuse me, could you please clarify for me the value of 3000 credits in Rocket League? I'm trying to understand the monetary equivalent or the purchasing power that these credits hold within the game's economy. Is there a fixed exchange rate, or does it vary based on certain factors? I'm interested in knowing how much real-world currency this translates to, or if there's a way to compare it to other in-game currencies or items. Thank you for your assistance.