Current tariffs in high-security space - as of today - on Singularity:

P0 Aqua - 0.50 / 1.00 per unit (import/export)
P1 Oxygen - 0.10 / 0.20 per unit
P2 Coolant - 9.00 / 18.00 per unit
P2 Mech Parts - 9.00 / 18.00 per unit
P3 Robotics - 9.00 / 18.00 per unit
P4 Broadcast Node - 50,000 / 100,000 per unit

Math:

- P0:P1 unit ratio is 3000:20 (150:1), volume ratio is 30:7.6 m3 (3.95:1)
- P1:P2 unit ratio is 80:5 (16:1), volume ratio is 30.4:7.5 m3 (4.05:1)
- P2:P3 unit ratio is either 20:3 or 30:3, volume ratio is either 30 m3 or 45 m3 into 18 m3
- P3:P4 unit ratio is 12:1 or 18:1, volume ratio is between 87-108 m3 vs 100 m3

Current prices on TQ:

P0 - 1.50-4.00
P1 - 150-800 (traditionally 120-600)
P2 - 4500-11000 (traditionally 4000-7500)
P3 - 25000-70000
P4 - 800k to 1500k (traditionally 600k-1200k)

New export tariffs (in hi-sec) as a percentage to the market value of the tier:

P0 - 25.0% to 66.7%
P1 - 0.025% to 1.33%
P2 - 1.64% to 12.0%
P3 - 0.0257% to 0.072%
P4 - 6.67% to 12.5%

Summary:

- P1 tariff rates are even lower today then they are on TQ - which means P1 harvest worlds will be even less viable as a taxable resource then initially thought.

- P3 tariff rates are ridiculously low.

Suggestions (assuming hi-sec tariffs are left at the "10%" setting):

- P0 tariff should be 0.40 / 0.80 in hi-sec (not 0.50/1.00)

- P1 tariff should be 40 / 80 per unit in hi-sec.

- P2 tariff should be 500 / 1000 per unit in hi-sec

- P3 tariff should be 5000 / 10000 per unit in hi-sec

- P4 tariff is fine (or take it up 25-50% to encourage building outside of hi-sec).

- If the allowed tariff rate is 0-20%, then the hi-sec CO tariff rate of 10% is okay. But if the allowed tariff rate is 0-100%, then the hi-sec tariff rates are way too low and need to be boosted to 50%. (In which case, all of the above numbers should be divided by 4.)

- The goal of hi-sec tariffs should be that they are high enough to reward a move to null/low in order to reduce taxes, high enough that a low-sec POCO can be viable and competitive for a P1 harvest planet, and generally in the range of 10-20% of existing/traditional market values for that tier when done in hi-sec.