At The Pill Peak
Here, Lin Mu could see that the lines for those that were desiring to buy the alchemical pills were longer than those of selling.
Lin Mu got closer and saw the entire process of transactions. The disciples would approach the exchange window and talk with the other disciple who was working within. They would state what they wanted to buy or sell and then present their badge to the worker.
The worker disciple would check this badge and would then add or deduct sect credits according to what was bought or sold. This transaction was not done on the whim of the worker disciple but rather a formation array that was in the form of a pedestal.
The worker would enter the value and then place the badge on the pedestal. This would complete the transaction by deducting or adding the sect credits. Overall, the process was simple and the only thing that consumed most of their time was the checking of pills.