Here's how the number system works.
1 is lower than 2
2 is lower than 3
3 is lower than 4
and so on....
150 is higher than 100
100 is higher than 50
50 is higher than 40
and so on...
By playing MVSU our RPI went from about 45 (not sure on the exact value) to about 60 (not sure on the exact value). And since 45 is lower than 60 (or 60 is higher than 45 if you like it that way) I stated that our RPI ranking went higher.
I understand where your confusion is coming from though, cause I had to re-read things like 3 times to set myself straight.
You want your ranking value as low as possible, closer to 1 is better.
And when did post count values declare someone on being wrong or right
D@A? You still chapped about the Dodgers/Cardinals stuff?