# Extra income ### Royalty The royalty will be 10% ### Advertisement We appreciate our users very much. And we want you to be appreciated by others. That's why advertising in our channel will cost from 1 ETH, payment will be accepted to the address of the smart contract. ### "Burning" Resale with "burning" income from the sale will be sent to the smart contract (described in more detail in the mechanics) ### Increasing the NFT level #### The starting point of a paid upgrade: * 0->1 = 1 ETH * 1->2 = 10 ETH * 2->3 = 100 ETH --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://tenpercentnft.gitbook.io/ten-percent-nft/the-economy/extra-income.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.