I love this idea, this is really cool. I work on a joint data/business team and this would be useful for us. One piece of technical feedback: it would be good if you could press = and then use the arrow keys to select parts of your formula (like in excel). With quantus, I need to press =, and then switch to my mouse, and then click the cell (for example EBITDA), then press '/' on my keyboard, then go back to my mouse to select revenue, and then finally press equal, and then submit the assignment.

You should also make the tutorials/mini assignments slightly harder. Its really easy to calculate EBITDA margin when there are 2 lines on the page: revenue and EBITDA. It would be better if there were a few red herrings (like in a real financial statement/operating model). It would be even better if there were some harder stages where someone needs to first calculate EBITDA through the income statement, and then EBITDA margin.

Final piece of feedback: the various mini assignments in a module should all operate off of the same broader set of tabs/excel sheet. It would be rewarding to keep filling out more and more of the broader model, and also to have the context of the entire financial model available at any given time.

Happy to chat more. I would like to add something like this to my team's employee onboarding / training process.