The article says rates have more than doubled since the beginning of the year. Uaing a mortgage calc for $400k and 20% down: 3.58% = $522k, or $202k in interest 7.16% = $778k, or $458k in interest
There is nuance that interest changes over the period of the loan. In or so 2007 some people took 5% Euribor + margin loans, but only some years after it was negative. And since negative euribor was not written to contracs some paid less interest than was margin.
https://twitter.com/RickPalaciosJr/status/150811381352611430...