Definition: 
Statistical indicator that measures the changes of the prices of goods and services which comprise the household consumption expenditure during a specific period called the comparison period as against time period called the base period. This change in prices reflects the burden which be fells the consumer, cost of living and whether they are rising or falling , compared to the base period, hence obtain information about price trends, markets conditions and the cost of living.
Methodology:
CPI is calculated in the Sultanate on the basis of the amended Laspeyer’s method having the following mathematical form:

Where:

 = price of the commodity in the current period

= price of the commodity in the previous  period

= Average weight at the previous prices

Periodicity:
 Monthly
Unit of Measurement:
 Percentage
Source:
National Center for Statistics and Information