sorry guys but I think it's impossible to find the formula for the higher levels.
After lv20, the Values of the ALL players increasing a little and they are all about the same (for young/old/f.t./ 3-4-5-6-7* players) and the wages increasing more than the values.
Also nordeus increased some prizes for levels above 40 (I think), before 1,5 year.

Thanks friend but data are absolutely broke...
wrong, the prizes for the first rounds of CH.L. and Cup are (almost) correct.