CPI (Consumer Price Index) is one of the most important economic indicators in forex trading.
It measures inflation — the change in the prices of everyday goods and services such as food, rent, transportation, healthcare, and clothing.
In simple terms, CPI shows how expensive life is becoming in a country.
High CPI → currency goes up
Why?
High inflation makes the central bank raise interest rates.
Higher interest rates attract investors → currency strengthens.
Low CPI → currency goes down
If inflation is low, rate hikes are less likely → currency weakens.