Hi
The first thing I would do is to unreconcile the single joe bloggs transaction ( remove tick)
Then go into the transaction ( blue arrow)
See if you can edit the trancation ( top ribbon on left hand side) and see if delete payment comes up. Delete the payment which will delete the myob transaction to the bank not the pay itself
You need to check that there are infact two pays entered for JB - your report suggests not
Do a find transaction for the amount and see what comes up . Are there two payroll transactions or has someone just entered a random entry just a spend money.
If indeed there are two pays for JB you do need to reverse one as the ytd figures sent to ATO will be wrong in any case. The second pay and the reversal will cancel out the additional figures.
It looks like a rogue entry really especially as the payroll activity only shows the one amount.
Look at the entries and see whats what
Hope this helps
Lisa