On my 13, the way I understand it is when it's 100%, that's essentially on a "10,000" mile change interval. The computer is then supposed to adjust based on how it's been driven and adjust the % accordingly. The manual says under "sever" driving conditions, you should change at 7500 miles...
Well, for me, I don't pay any attention to the % on the computer... It's all about the number of miles and when I feel it's just the time to change it..
I've been doing 5000 mile changes on my vehicles for a long time now.. Got over 255,000 miles on my 97 when I traded it for the 13 and the 97 still had a bunch of life in it. I just wanted a new truck!
I took the 13 in for it's first oil change at 2800 miles. The dealer overfilled by 1 qt, but I caught it early and fixed it... I just did my first garage oil change on the 13 and it was a mess, but I learned a LOT! I did that at 6400 miles, just because I've still got a couple of camping trips planned and it's been hot and I just wanted to change the oil in it!
I put in Castrol Edge 5w30 in it with a MC filter... Same oil I used with the 97, so I'm good with it..
Oil changes are cheap, so I'll go no more than 5000 on a change and with the direct injection on these things and the oil dilution the oil does get because of that, I'll change it often!
Then, I'll just reset the stupid oil change %... But, you can set it to 50% if you want to start off with it and have the computer tell you when it's down to 0%...

That'll be about 5000 miles essentially..
Good luck!
Mitch