Usualy the score gets written in the Local Storage. And read back on layout startup.
If you intend to not use the Local Storage, or it is not in place yet and you want to debug things ....
Then there is a easy solution like this ....
https://www.dropbox.com/s/7zxzxic7efx83 ... .capx?dl=0
Notice that SCOREbackup = static.