How to figure out buying power?

Sure, here's a description in English with a tone of a questioner, based on the paragraph "How to figure out buying power?": "Hey there, I'm curious about understanding my buying power when it comes to investing in cryptocurrency. I've heard the term before, but I'm not entirely sure how to calculate it. Can you walk me through the process of figuring out my buying power? Maybe we can start with understanding what buying power is and why it's important to consider when making investment decisions. From there, I'd love to learn about the specific steps I can take to calculate my own buying power. Thanks in advance for your help!