Best way to summarize information that refers to an input

We are building a small tool to compare mortgage terms and their impact on the user's finances in the long term.

We used to have an article explaining several concepts in the tool but opted for a different approach to prevent the user from having to read a full article in order to use the tool. The approach is to put expandable bullet points containing summaries under the tool's inputs like so:

In most cases there will be more than 1 expandable bullet point under each input. Are there better ways to summarize information that has some relationship to the inputs on top of it?

Here's the full design for context.