<prompt> Human: Hi guysAs the title says, my friend uses the equivalent of 2people. Approximately 450AUD per quarter. I just need some advice on how to go about with me moving in and paying part of the electricity, but not more than my fair share.She has put forth a 7030 split. But i still worry about how this could go wrong.Edit: She says its because she uses washer dryer multiple times a week for workworkout clothes. Also, that she has some portable fans and aircon use esp. during summer. This would definitely increase the electricity use, but by this much?  <response>: I would agree on a total rent amount including all utilities electricity, gas, water, trash, sewer and internet, that way it doesnt vary month to month depending on how much electricity she uses. 