Mark's explanation of each model that was withdrawn from the display in the store earlier lasted for more than an hour.
After a while, the three of them came downstairs and Chang Bo helped Mark with the packaging of the weapons while the latter purposely gave the task of calculating to Song Yue so that she found herself doing her job.
Song Yue was an educated woman who was taught by the Royal Tutor. While she might not be as intelligent as Shen Ling, at the very least, she knew how to make calculations without making mistakes.
As Mark started to speak of the order, she opened her notebook where she recorded the prices of the weapons and explosives available in the store.
In the end, the bill totaled 10596 gold coins and Lan Jing paid the amount with medium-quality ether crystals of 10-carat sized, each one equivalent to 100 gold coins worth.
Mark was happy to receive 106 of them as he was in need of them more than the money anyway.