Results vary for each campaign, and it is difficult to provide a precise estimate. Many factors influence outcomes, such as your target audience, niche, message, product or service, and your content.
For example, a pizza shop promoting itself will have different results compared to an NFT project. Even within the NFT space, targeting different follower accounts like @nft and @nft.money will yield diverse results. Therefore, statistics can only be built through A/B testing and experimenting with different campaigns.