I would say there are many factors....

Bodyweight being a huge one... The bigger you are the more blood you have so the lower your concentration would be.

For me....

80mg of pharma test gets me at around 500 at my trough.

I've tested twice with Balkan.
500mg test C got me 3500ish
500mg test P got me 4200ish

I am 220+lbs.
So basically say 7 times my dose.