When spending (expenditures) is higher than income (revenue), thereby causing an unprofitable period for someone. This is also known as a “net loss”.

In finance, there are several types of loses:

• Exchange rate loss: loss derived from exchanging from one currency to another
• Capital loses: loss derived from selling a financial asset at a lower price than it was initially bought.
• Exploitation loss: lost derived from the company´s principal and normal activity
• Extraordinary loss: it is an unusual loss and it is not related to the company´s principal and normal activity