All of the Dual Holding Domains (TrB & BC, Ghieste & HOT, etc) have the income of their holdings added strangely. The income from law holdings is treated properly, while all other income is added in AFTER stability/variable income is taken into account.
In effect, part of the income will not suffer the effects of domain stability/variable income.
For instance on the South Coast tab for Arron Vaumel, Cell R4 should be =MIERES!D63+O36
While cell O4 should be =(R4*LOOKUP(Q4,Stability!A$2:A$9,Stability!C$2:C$9))*LOOKUP(P4,Income!A$2:A$21,Income!B$2:B$21)+S4-T4+U4-V4 (notice that the variable income lookup has been fixed--that is wrong throughout the entire spreadsheet, I suggest using 'Replace' to change that)
Basically, he started with 58 GB, but the -3 stability was not being applied to the income from the SAS. His income should be something like 47.8 GB.