I can add it as follows. My current strategy is based on M15. If I take this into account, I should work with 15-minute steps for the exit time. So, for example, exit time at 23:45, 23:30, 23:15 etc ... But what's happening right now or how is this calculated in FSB when I set the exit time at an irregular time that does not fit the current time frame . In my images, this is set to the minute 23:59. On what is the calculation then based in this case. Since my timeframe is M15 and the exit time is set to the minute. I think that this is leading to incoherent calculations in FSB or is not?

Ok indeed, when I respect the 15 minutes steps for exit time, the calculation looks to be good. So I guess it's a good point to use exit time steps that are equal to the timeframe of the strategy to prevent incoherent results.

note: there is a little difference but it is not that bad. Although, I prefer to know how it is calculated.

I'm testing with exit time because, sometimes Day closing does not close. I want to see the difference when using exit time and that's why I came upon this problem. I thought it was possible to achieve the same results as with day closing, but there is something different in the end. Although it not that bad when using steps that are fit to the strategy's timeframe.