This can be called the Law of  OSRS gold Supply and Demand. If an item is in high demand with reduced supply, the price will increase. If an item is in low demand with high distribution, the purchase price will fall. If the requirement for a product is matched by its supply, the price will remain rather constant.

Because you can normally only bid 5 percent above or below the typical price of a product, you'll realize that there's not much risk of a product's cost payable or skyrocketing too rapidly. This makes it tougher for players to control prices and guarantees that everyone gets a fair deal.

Rates are entirely set by players trading! There is no'set worth' that prices are predicated on, with the exception that a price will never rise above a shop's key stock price, or drop under the cost a store will cover it. Note that shops will adjust their prices according to the Grand Exchange, therefore it is extraordinarily difficult to make a quick profit by buying from the stores and selling on the Grand Exchange and vice versa.

The costs things sell at are therefore not set by Jagex but from the players themselves! We are keen to keep a player-driven economy, so the prices are worked out with the supply and buy RuneScape gold demand rules above. We will only intervene as a last resort, and only if we believe price manipulation is happening, even though the system has lots of defenses to prevent this. The market value of a product is automatically recalculated roughly once per day.