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Hi @dogimage, great question. This means that it will not accept bids if the ROI for the round goes into the negative by 10%. So yes, you should receive no less than 90% of what you paid for the upvote.. but usually you'll see a positive ROI.

Is is calculated before or after curation reward? I am looking for reliable bot voter but most of them gives loss. What are your brackets and median for upvote?

After curation rewards. And you can check all of the stats for my bot on https://steembottracker.com. They have a connection to my bot API which shows you the current and previous voting rounds.

One suggestion I might give you, is to not solely use upvote bots for profit. Think of them as a promotional tool to boost your post into the Hot or Trending sections and to get more viewership. 👍

I am not taking about earning, but rather securing value. Real money today means more than the same value in a week, and crypto markets are dynamic. Anyway thank you for such detailed information

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