1. Upgrade the trading post level: the higher the trading post level, the larger the income base. The level of the trading post can be upgraded.
2. Increase the number of merchants: The more merchants dispatched by the trading post, the larger the income base. The number of businessmen can be increased by increasing commercial buildings and recruiting more businessmen.
3. Increase the variety of commodities: different commodities bring different incomes, and some advanced commodities bring higher incomes. Therefore, choosing the right commodity type can increase the income base of the trading station.
4. Change the influence of surrounding plots: the plots around the trading post will also have an impact on the income base. For example, port plots can increase the income of trading posts, while mountain plots will reduce income. Through the optimization of the above aspects, the income base of trading stations can be improved, thus bringing more wealth to the kingdom.