1099-K form from from Airbnb

Hi, I received a 1099-K from Airbnb, but the reported amounts reflect the total collected by Airbnb, not my actual payout. Should I adjust it to reflect my actual earnings, or keep it as-is? Also, after entering the form into TurboTax, my net return increased by approximately 20% of the amount reported. How is that possible? Since it’s income, shouldn’t it decrease my return instead of increasing it?