comment: >
  
  This point is useful.  Value can be calculated in various ways, and it is up to partners to choose the calculation that works for them.
  Others might find more happiness in equality or in contribution according to use, for example.
context: Every couple is different and they should decide between themselves the financial responsibilities. 
  You do you, I hope you find someone who agrees with you. I think your financial distribution is reasonable, but the premise that all couples should do this is not. It also ignores things a person may value independent of their partners income. For example if you do percentage split on groceries, but she does all the cooking is that fair? Should she charge you a rate for cooking? How about child care? You could quantify these things in dollars but it's going to get complicated.