Kerbal hiring costs

[Ksp Slingshooter]

Hello Kerbonauts, 

I've been looking around for an exact formula for the Kerbal hiring cost from the Astronaut Complex out of curiosity.
I checked the forums and the wiki, but it's written that the Kerbal hiring cost follows the formula: 150*n^2+12350*n, where n is the n-th Kerbal to be hired and starts at 5 since Jeb, Bob, Bill and Val are already hired by default at the start of the game. The thing is that this formula is simply wrong, since the first Kerbal I hire (n=5) costs me 62113, the second one (n=6) costs me 71031, the third one (n=7)  79054 and so on and so forth. Did the game have an update that changed the formula from the wiki, if so does anyone know the current exact formula?
I did go aheah and plot the costs and I did a couple of regressions using Desmos, but they are not exact formulas: https://www.desmos.com/calculator/ajvmck7wc6

P.S: I am running mods, but I don't believe any of the mods I'm using are changing the costs. It's better if someone running the game modless checks these costs.

P.P.S: I don't know if this topic should be here or moved to KSP discussions.

[king of nowhere]

13 hours ago, Ksp Slingshooter said:

Hello Kerbonauts, 

I've been looking around for an exact formula for the Kerbal hiring cost from the Astronaut Complex out of curiosity.
I checked the forums and the wiki, but it's written that the Kerbal hiring cost follows the formula: 150*n^2+12350*n, where n is the n-th Kerbal to be hired and starts at 5 since Jeb, Bob, Bill and Val are already hired by default at the start of the game. The thing is that this formula is simply wrong, since the first Kerbal I hire (n=5) costs me 62113, the second one (n=6) costs me 71031, the third one (n=7)  79054 and so on and so forth. Did the game have an update that changed the formula from the wiki, if so does anyone know the current exact formula?
I did go aheah and plot the costs and I did a couple of regressions using Desmos, but they are not exact formulas: https://www.desmos.com/calculator/ajvmck7wc6

P.S: I am running mods, but I don't believe any of the mods I'm using are changing the costs. It's better if someone running the game modless checks these costs.

P.P.S: I don't know if this topic should be here or moved to KSP discussions.

difficulty level influences cost too. that's all i can give

Edited November 6 by king of nowhere

[magnemoe]

in your case the cost difference between 5th and 6th kerbal is 8918 wile its 8023 for 6th and 7th and 7291 for 7th to 8th.
for 10-11 its just 5725 so  difference is going down. mind you price is going up, its 104918  for the 11th.  its 209441 for the 50th kerbal and 210923 for the 51th so an 1482 credit difference 
All this on default settings. 
the 50th kerbal would cost 867 500 credit with above formula. 

Now back then carrier was new the cost rose very hard and the 50'th kerbal would cost over 20 million.  This was nerfed and I assume nerfed again to current values.