Data from last week :
Beta and live fr1 : see below
Live fr3 : +2 non-premium expansions. SS 3768 in Spire first encounter ; 21096 in tournament P28, 1*
Live fr4 : +6 techs. SS 1419 in Spire first encounter ; 4540 in tournament P16, 1*
New account (has 8 T1boost relics and no added expansions) : catering costs 450 coins in first province, 1*
Detailed comparison for Beta and Live fr1 as these two cities seem to have weird squad sizes :
City | elf/human | Chapter | MTechs | AW levels | Expansions | Relics | Tournament province | Own Squad size | Catering cost (T1) |
Beta | Elf | 2 | 33 | 0 | 7 (1 premium) | | Province 2, 4* | 27 | 85 |
Live fr1 | Human | 3 | 40 | 0 | 12 (0 premium) | | Province 4, 2*
(so same factor to CAL) | 12 | 36 |
For relics, I listed my boosted relics in the first row, boosted+1 in second row and boosted+2 in third row.
The only explanation I can see for having higher costs in my beta city would be that the first non-premium expansions don't penalize (so for example if you have less than 12 it's counted as 12) and then the premium expansions are added. But this wouldn't be sufficient to explain a 125% (!!) difference.
PS:
Relic boost overview (from wiki, at the end of the page)