Generally i would this: salary- taxes and insurance - average rent - transportation(fix costs+variable costs*1.3) Remt and taxes with imsurance are the biggest

Generally i would this: salary- taxes and insurance - average rent - transportation(fix costs+variable costs*1.3) Remt and taxes with imsurance are the biggest parts after that transportation will be a big part, because you have to plan to be onsite and for buying groceries. The rest you can spent how you want.