This is a fabulous tool! Thank you for sharing it.I used to use this one
https://www.distripplanner.com/
Yeah... it had the price for the refillable mugs off by a couple of dollars per mug along with some other differences with what I had calculated.That tool does look great, but I am not sure how up to date it is. They do not have Space 220 and still have spirit of aloha listed. It might be using the price of the dining plan prior to the pandemic and not the current price which has increased. I would double check with the costs on the WDW website just to be sure.