Building Upgrades

== Factory Upgrades ==
Factories can be upgraded twice: Once when they reach a total of 1000 units of goods produced, and once when they reach a total of 3500 units of goods produced.
Each factory type has two upgrades available to them, and there exists three different types of upgrades:
* Upgrade of efficiency (+20)
* Upgrade of base production (+50%)
* Upgrade of maximum number of workers (+1)
Fore a more in depth guide on factory upgrades, please check out the corresponding article here.
== Shop Upgrades ==
Shop upgrades work similarly to factory upgrades. All shops may be upgraded twice, the first time being when their total sales reaches 1 000 units, and the second time when it reaches 3 500 units.
For a more in depth look at shop upgrades, please check out our full shop upgrades guide here.
== Warehouse Upgrades ==
When founding your company, your warehouse can hold a total of 500 units of goods. You can upgrade your warehouse, increasing the capacity by 500 units of goods every time. There is no actual maximum; the limit is what can you afford. The cost for upgrading starts at 2 000 and increases by 2 000 every time you upgrade.
== Efficiency Declines ==
Keep in mind that factories, shops, and offices have a percentage that will decline by .02% on the first day, .04% on the 2nd day, .08% on the 3rd day and so on. Factories can get upgrades(see above) that will increase their overall production, but shops and offices cannot.
Please note the efficiency will be effected by upgrades.
The game does a calculation each day based on the previous day's efficiency. The actual formula used is: new efficiency = previous efficiency - (building age * 0.0002 * base efficiency) When you do an efficiency upgrade, both the current and base efficiency are bumped up by 20 percentage points.