A Solution to rounding in Storyline – without using Javascript

I'm pretty new to Storyline - only one course produced so far but loving it - and I have been asked by my client if I can get the final score to always be a whole number. I used the trick above to create the variable 'RoundedScore' and it works great, but I don't know how I then get that variable to be the score passed back to the LMS when my 'submit score' button is clicked.

Is this possible?