I've got £468 in there as of Monday.
My remaining direct debits come to £237 for the rest of the month.
That leaves me with £231 for the shopping for the next fortnight, yeah?
Divide the £231 by 2 for the two weeks until my next pay day leaves £115.50 a week for the shopping.
So where has the other £12 come from on my other bank balance post??