Chia mining calculation (06.06.2021)

Alexey E, (06.06.2021; 18 EB netspace, $674/Chia coin)
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Costs:
Hetzner = 360x 30 EUR = 10,800 EUR
Dedi = 102x 120 EUR = 12,000 EUR
THC = 20x 330 EUR = 6600 EUR
Rampage = 25x100 EUR ? (initial HDD and HDD install costs are huge; over $70,000)
Total = 29640 EUR  cost x 1.2 = $36,000/mo cost
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Disk space (theoretical; TB):
Hetzner = 360 x2 x3TB = 2160 TB
Dedi = 102 x4x3TB = 1224 TB
THC = 20x 14x6 TB = 1680 TB
Rampage = 25x 4x10 TB = 1000 TB
Total capacity (theoretical) = 6064 TB
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Disk space (actual; TiB):
Hetzner = 360 x2 x2.4 TiB = 1728 TiB
Dedi = 102 x4x2.4 TiB = 980 TiB
THC = 20x 14x5.1 TiB = 1428.0 TiB
Rampage = 25x 4x8.8 TiB = 880 TiB
Total capacity  (actual) = 5016 TiB
(NOTE: actual disk space available on Hetzner for Chia is ~2.4 TB rather than 3.0 TB;
-10% due to 300 GB Chia Plot size, and -10% due to TB <--> TiB conversion rate)
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Profitability (06.06.2021; 18 EB netspace, $674/Chia coin)
Hetzner = $16.75k / month - $13176.0 (+white dollars are worth ~$1.3; so ~$17000 real costs to me)
Dedi = $9.50k / month - $14640.0 costs = mining at a loss. (-$5k/month !)
THC = $13.84k / month - $8000/mo costs = $5.8k profit.
Rampage = $8.35k / month - $3000/mo costs = $5k profit.