Can be more or less. Most of these bots are bidbots, meaning it depends on how much people bid in the 2.4 hour time frame. So it may be a loss if someone comes up with a huge bid in the same time frame you transferred the SBD. Maybe you can try with a small amount and see your returns.
Just minus the 25% curation, divided by 2, see if the SBD and SP covers the cost. Furthermore, if you're using it on a dsound/dmania/dtube/esteem post, they will take a percent as beneficiary as well. So, rugi further..