Inflation Rate by Commodity Group
•    On the other hand, monthly uptick was higher in the inflation rates of the following commodity groups, when compared with the annual figures from the previous month:
 Alcoholic Beverages and Tobacco, 2.3%
 Furnishings, Household Equipment and Routine Maintenance, 2.3%   Transport, 22.6%
 Recreation, Sport and Culture, 2.9%
 Personal Care, And Miscellaneous Goods and Services, 4.2%
•    Lower Annual gains were observed in the inflation rates of the following commodity groups when compared with the annual figures from the previous month:
 Clothing and Footwear, 4.0%
 Housing, Water, Electricity, Gas, and Other Fuels, 3.1%
•    Meanwhile, the indexes of the remaining six (6) commodities maintained their inflation rates for the month of June 2022. There was no significant change compared to the annual figure from the previous month:
 

Inflation Rate by Food Group
Inflation for food index in the province retained at 4.1 percent in June 2022, same with the previous month. In June 2021, it was registered at 5.5 percent.
The annual indices of commodities with top contributions to the inflation rate of the province are the following:
 Fish and other seafood, 12.4% (43.8 percent contribution to inflation)
 Vegetables, tubers, plantains, cooking bananas and pulses, 21.3% (36.3 percent contribution to inflation)
 Meat and Other Parts of Slaughtered Land Animals 7.3% (28 percent contribution to inflation)
Meanwhile, annual indices of Corn; Flour, Bread and other Bakery Products, Pasta Products and Other Cereals; Oils and Fats; and Sugar, Confectionery, and Desserts have an upward trend while the remaining four (4) food commodities had downward trends, resulting with the inflation rate of food group to retain at 4.1 percent.
 

Purchasing Power of the Peso (PPP)
• The purchasing power of the peso in Occidental Mindoro in June 2022 is at Php 0.83 peso. This figure means that a peso in 2018 is only worth 83 centavos in June 2022, while the PPP registered at 0.87 in June 2021. As a result, the amount of goods that can be presently purchased by consumers were fewer compared to when the PPP was higher. Furthermore, the decrease in PPP was attributed to the higher inflation rate, given that they have an inverse relationship.
 

TECHNICAL NOTES

What is Consumer Price Index (CPI)?
The CPI is an indicator of the change in the average retail prices of a fixed basket of goods and services commonly purchased by households relative to a base year.
What are the uses of CPI?
The CPI is most widely used in the calculation of the inflation rate and purchasing power of the peso. It is a major statistical series used for economic analysis and as a monitoring indicator of government economic policy.
How is the CPI computed?
The CPI is computed using the weighted arithmetic mean of price relatives, a variant of the Laspeyres formula with fixed base year period weights. In computing the CPI, the formula is
 

where:
Pn = current price
PO = base period price
W = PoQo = weights
Base Period - a reference date or simply a convenient benchmark to which a continuous series of index numbers can be related. The base period is year and the index is taken as equal to 100. The present series uses 2012 as the base year.
Market Basket - selected sample of the varieties of goods purchased by consumption and services availed by households in the country to represent the composite price behavior of all goods and services purchased by consumers.
Weighting System - a desirable system that considers the relevance of the components of the index. For the CPI, the weighting pattern uses the expenditures on various consumer items purchased by households as a proportion to total expenditure.
What is Inflation Rate?
Inflation rate is the annual rate of change or the year-on-year change of the CPI expressed in percent. That is,

where:
CPII - is the CPI in the second period
CP12- is the CPI in the previous period
What is Purchasing Power of the Peso (PPP)?
The PPP is a measure of the real value of the peso in a give period relative to a chosen reference period. It is computed as the reciprocal of the CPI and multiplying the result by 100. That is,