indeksinumeroilla
Indeksinumeroilla, also known as index numbers, are statistical tools used to measure changes in a variable or a group of variables over time or across different locations. They are essentially relative numbers that express the value of something in a particular period or place compared to a base period or place. The base period is assigned a value of 100, and subsequent periods are represented as percentages of this base.
The primary purpose of index numbers is to simplify complex data and to highlight trends. For example,
Calculating an index number typically involves dividing the value of the variable in the current period by