Hi,
I would like to share the following – correct me if I am wrong.
I have realized that there is a production fee for different branches on planets. The final fee for production differs from it.
After some research I came to the conclusion, that
with = standard fee for a product and cycle and
with n = number of production cycles and
t_zs = the standard time per cycle.
So
with the efficency as standard time divided by actual operating time per cycle and assuming that n is constand you would end up with
Examples:
F = 20 $ / 24h ; n = 4 cycles; tzs = 6h/cycle –> fzi = 20
with tzi = 12 h and n = 1 cycle
In other words the production fee is a cycle fee.
Depending on the units per cycle you produce its a unit based production fee, given by the standard cycle time of the specific product and the fee set.
The fee based on cycle should be for the the same product the same on each planet. It would differ basing on the units per cycle produced. e.g. if on planet A 5 units are produced it would be 1 per unit while on planet B with 6 units produced it would be a fee of 5/6 per unit.
That is my problem with the approach:
 The fee based on cycle is not easy to calculate (overseen) as it is different for each product!
 The basic standard production time is not clear
For my water production i have an efficency of 0,79 with a time of 7h and 33s to produce.
The standard production time therefore should be: 5,53h and 26s. That is like 5h 32 minutes and 14 seconds. Thats not the same as described in the in game menu
With the ingame data my efficency would be 68,41 %thus the calculation of fee is per cycle is different.

The fee basing on cycle makes me feal uncomfortable. Either it is charged on unit base (as units per cycle is different. Or it should be charged per time. Currently the fee don’t punish or encourage you to speed up production time. (I know that time equals other costs, but we talk about fees).

A fee by definition is something you pay for using something. What are you using ? As I have explained the fee is basing on production cycles (not time, not units)! And a cycle is not something you use. If you say “yeah but you use the planet/ planet time etc.” I had to answer, then the fee must be paid, even if you don’t produce a thing. And again the fee is not based on time, but cycles only.
My suggestions:
a) rename it tax
b) Calculate it basing on the production time only
→ to be paid tax is the tax rate per day multiplied with individual time per cycle multiplied by cycles produced.
This way the user can calculate his tax in an easy way, its still different for each product, it punish or support efficiency (instead of taking it out of the equitation) and as nothing planetary is used it is what it is a tax.