If you change the price of a house, the monthly payment seems to remain locked while the years to pay off changes. People may prefer a fixed term loan. I would anticipate the loan term is locked while the monthly payment updates. If you don’t check carefully, you end up looking at a chart based on an unusual loan term. Once you understand, it is one more thing to go update every time you update a home purchase price. I’m not sure it adds value that way. I’m sure this is nit-picky but it has tripped me up.