title: ImportXML with Index() function return wrong value
body: <p>I have a problem with a function on Google Sheet.
  I wrote this in a cell : </p>
  
  <blockquote>
    <p>=index(IMPORTXML("<a href="https://coinmarketcap.com/currencies/power-ledger/" rel="nofollow noreferrer">https://coinmarketcap.com/currencies/power-ledger/</a>";"//span[@data-currency-price]");1)</p>
  </blockquote>
  
  <p>It should print the same value which is on this website : <a href="https://coinmarketcap.com/currencies/power-ledger/" rel="nofollow noreferrer">click here</a>
  but instead of that it shows a complete different value. I don't get it, where am I wrong?</p>