within the full view of an education goal, it looks like this is fully funded at $320/mo yet at the bottom it is saying it's actually only 80% of the goal is funded and $401/mo is needed to fix the gap. Apparently in the back-end the full page calculation is assuming inflation adjustments to the annual savings (which is not apparent or disclosed). the tooltip within the graph is broken and "contributions" do not show before college starts, only after.

it also assumes contributions continue through college where the $401 assumes contributions end at college start.

overall these numbers and graphs have to align. i would say clients and advisors would more expect to solve for "what is the flat amount per month i need to contribute to fund my target amount (67%) of college by the time college starts?" no inflation adjustment and does not continue through college.

also, this calculator needs a glide path toggle to get more conservative as college start approaches and continues through college (i have a separate ticket requesting this feature).