Answer :
Prices have typically fluctuated in history, and customers have bartered with shopkeepers to acquire the best deal on a certain item.
If the product was in high demand and there was a shortage of stock, shop owners may immediately boost the price.
On the other hand, a store owner could lower the price to boost sales if they needed to get rid of an overstocked item. Additionally, retailers could alter their prices based on the customer. A product's price would be greater if a customer appeared to have more money to spend on it than it would be if they appeared to have less. But this approach was, to put it mildly, ineffective. And as enterprises expanded during the Industrial Revolution, keeping track of prices soon proved too difficult and time-consuming.
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