My daughter and two friends are moving in together. The friends are a couple. All girls. It's a three bedroom house. Couple have master bedroom with ensuite. Dd has bedroom and main bathroom. Third bedroom will be an office. One of the other girls works from home 95% of the time. Dd and other girl rarely work from home. Kitchen/dining room, sitting room and utility. Dds bathroom will be used by visitors. Dds boyfriend will stay occasionally, doesn't live near. All will go home some weekends. What way do you think rent and bills should be split. Bills are electricity and WiFi. I'm asking because couple think it should be a 50/50 split but dd and I don't think that's fair. All three names will be on lease. They are all mid 20s and working.