Your order -555 basins in the amount of -55500 rubles.

This is a common mistake in online stores. In the offline store, you have to choose 555 blue plastic basins: put all 14 pieces in the basket from the window, climb onto the top shelf of the rack and get 43 more, and go with the seller to the warehouse and find only 143 more.


In the online store “All the best basins of Russia” everything will be much simpler by looking at the list of available basins, just order one for yourself and, using a virtual basket, multiply its number to the desired 555. But what will happen if instead of “555” you type “-555”, it seems the store owes you money.

Everything would be funny, if not so sad. A similar mistake is found in almost all self-made stores and even in many much more serious ones.. The error manifests itself in different ways, in some places it is possible to order a negative number of goods for negative money. In others, when the sum of the goods is <0, the basket is dumped, but if you add one “big red basin” for 10,000 rubles, and -5 blue for 100 rubles, you get 9,500 rubles, a tired sales manager may not notice such an error.

Friends, let's write the correct checks for the data!