What he was doing was pretty simple. For instance, if it was stated in the accounting documentation that they will be receiving an intermediate spirit stone, he would leave the documentation alone but the intermediate-grade product would be substituted with a low-grade spirit stone.
With this, with virtually no change to the number of goods in their inventory, no one would know what was going on.
Where the item in question had no cheaper replacements in the market, he would just use fake items such as random rocks, twigs, and even empty boxes as substitutes.
Because no one had yet to reveal his operation, Zhang Youdu grew increasingly unscrupulous.
After all, greed knew no bounds.