PSA: New Nation RP Bonus isn't a booster.

Originally posted by polly: The additional RP is from the base RP earned BEFORE the multipliers (Premium account, talisman, boosters, vehicle multiplier)
Meaning that for a game giving you 2000 base RP and the nation bonus being 25% you will only get an additional 500 RP for the entire game calculated before the base RP is multiplied.

In other words:
An example game giving you 2655 RP (base) after all active multipliers being 11555 RP the nation bonus will add 664 RP bringing your total to 12219 RP earned.

As others have pointed out, it is a bonus, not a booster. Yes- at the lowest ranks, it is 25%. I think it makes reasonable sense that the smallest bonus does not generate jaw-dropping amounts of additional RP.

At the higher ranks (Where vehicles cost substantially more, and statistically you will spend more time at), I've gone back and looked at what I was getting yesterday playing 9.0 China and 10.3/11.3 USSR, and across 10 by-all-means-average games, I was getting between ~1,500 RP on the low end and as much as ~4,000 extra RP on the high end. I'm sure many players who are far better than me get even more.

Picking the most average of my games, I got four ground kills, a capture, and was researching a PGZ04. I earned 7,500 RP, of that was ~2,300 bonus. The PGZ is 260K RP. With the bonus, 35 games. Without the bonus, 50 games. I would describe that as being substantial.