She did not spend $2.3k . Need to minus $500 investment from it = $1.8k.
Her expenditure on food is onlee $7.50 per day lower than transportation $13 per day.
This means she eat dinner or probablee bf at home and never give allowance to parents.
So the problem lies in she is a freeloader.
The parents could be rich but it is not right not to give parents filial piety allowance whether they need it is another matter (mostlee the parent will save for her). She rather spend it on shopping. Conclusion she is a freeloading slut.