Sort:  

You would need to include the 25% curation, since 25% goes to curators and the author gets 75%.

I've noticed that during USA work hours 9-5, voting bots are competitive and it's tough to receive positive ROI. I usually like to wait until <10 minutes before bidding on the bot. I look for a bot whose ROI is > 25% with less than 10 minutes to go in the round before bidding. Hope this helps!

Also...maybe you know, which is the best moment to use the bot taking into account the 30 minute rule?