If you would like to project the outcome of your country or costs, this is the place to find your formula's! These formula's are obviously not 100% correct, but they are a well estimate of what you should expect. Just a side note instead of using "x" for multiplication I've used the "*" symbol instead for the sake of easier reading.

Alliance Costs: Defallies * Networth * 0.002 Offensive Allies: Offallies * Networth * 0.002 Intelligence Allies: Intelallies * Networth * 0.0015 Research Allies: Resallies * Networth * 0.0015 Trade Pacts: Tradepacts * Networth * 0.0005 Buildings Per Turn (CS/4 + 5)* GvtConstr Construction Costs 3 * Land + 1500 Destruction Costs 1/5 * (3 * Land + 1500) Food Production (Farms * 53 + Free Land * 4) * GvtFood * AgrTech Food Consumption Troops * 0.0048 + (Jets + Turrets) * 0.00384 + Tanks * 0.0132 + Spies * 0.018 + Pop * 0.216 GDI Costs Land * 4 Industrial Production Troops: Ind * (Troop% * 2.5) * Ind Tech * IndGvtBonus Jets: Indy* (Jet% * 2) * IndTech * IndGvtBonus Turrets: Ind * (Turret% * 2) * IndTech * IndGvtBonus Tanks: Ind * (Tank% * 0.5) * IndTech * IndGvtBonus Spies: Ind * (Spy% * 0.8) * IndTech * IndGvtBonus Maximum Population 2 * (6 * Land) * (1 - 0.95 * Tax) * (1 + 2 * Res/Land) * ResTech Max Tech % Military costs: 87% of Normal Military losses: 67% of Normal Max Productivity: 180% of Normal Max Population: 180% of Normal Max Farm Production: 225% of Normal Likelihood of New Development: 5% Per Turn Conditioning Level: 200% of Normal Military Effectiveness: 150% of Normal Industrial Production: 140% of Normal Spy Effectiveness: 150% of Normal Missile Protection: 90% Constant: If  (Milbases/Land + 0.005) < 0.3*(1 - 1.3 * (Bases/Land + 0.005)) Else: 0.61 Military Upkeep: Troops * 0.12 * MilTech * (1 + Networth/30000000) * Constant Jets: Jets * 0.13 * MilTech * (1 + Networth/30000000) * Constant Turrets: Turrets * 0.17 * MilTech * (1 + Networth/30000000) * Constant Tanks: Tanks * 0.551 * MilTech * (1 + Networth/30000000) * Constant Spies: Spies * 1.001 * MilTech * (1 + Networth/30000000) * Constant Networth (NW) Troops *1 + Jets * 1.1 + Turrets * 1.1 + Tanks * 4 + Spies * 2 + TotalTech * 4 + Land * 95 + Buildings * 70 + Money/10000 + Food/2000 + Missiles * 5000 + Pop/3 + Oil/100 Per Capita Income (PCI) 22.5 * (1 - Tax) * (1 + (Net Worth/Land)/90000) * (1 + 2 * Ent/Land) * Bus Tech * Gov PCI Private Market Costs Troops: 120 * GvtMilCost * MilTech * (1 - 0.23333 * Bases/Land) Jets: 162 * GvtMilCost * MilTech * (1 - 0.23333 * Bases/Land) Turrets: 174 * GvtMilCost * MilTech * (1 - 0.23333 * Bases/Land) Tanks: 492 * GvtMilCost * MilTech * (1 - 0.23333 * Bases/Land) Private Market Replenishment Per Turn Troops: 3.5 * Land Jets: 3 * Land Turrets: 3 * Land Tanks: Land Revenue: PCI * Pop * Tax rate Tech Points to Tech %: OriginalTech - GvtMaxTech * (1 - MaxTech) * (1 - e^ (LandTechMod)) The Land Tech Mod is hard to find, but is approximately (-tech/(150 + land *4), or -0.2855 Tech Per Turn 0.34 * Labs * (1 - (1 - Labs/Land)/2) + 3