I love that you have a README and License file (main criteria for open source category). Fill out your README, you can even just put that's in your submission page: https://extralenin444.itch.io/accounting-simulatorin your README.
Slightly confusing you need to go to another link to play the game. Great narrative. It'd be great to see where the numbers are actually going; ie. you can click on the sheet and then click to add the number, rather than just randomly clicking numbers. If you lose the game, it'd be good to be able to restart from the sheets, rather than restart from the entire narrative (or have a "skip" button).
Great job on your game.