Race placement formula for rewards?

Does anyone know the Race placement formula for the rewards? A friend of mine and I did a 5 lap race of goliath (neither of us got 1st place as we’re terrible) but our team got 1st overall. However, our rewards were different. I placed higher than he did in the race, and I earned more credits and influence. We’re about to do a 50 lap custom circuit of the highway with 2 other friends and are trying to figure out how much we’d make per place. Say, for example, 1st place would make $1,000,000 and 100,000 influence. Would second place make 95% of that, 3rd make 90%, and 4th make 85%? Or is it a higher/lower percentage per place?

Assuming multiplayer scores similarly with solo, for a 5 lap, 33min highway race @95% credit for assists off and with VIP, I get 250k for 1at and 225k for 12th.

Have a glitch now and then so when I lose focus and total crash off into the fields, unless I go back to near where I crashed it doesn’t count the lap. No warnings etc, I just end up 12th and a lap down which I can’t pull back on such a short race against unbeatable.