Understanding Wage Revision and DA Calculation
Considering the living cost and all, wage revision is being done once every five or ten years. However, inflation increases day by day, and subsequently, the value of money decreases. To compensate for this, we have to wait until the next wage revision, which is not practical. That is why the DA (Dearness Allowance) is introduced.
The devaluation of money can be assessed through the Wholesale Price Index and the All India Consumer Price Index (AICPI), etc. The difference between these two is that the price variation of all commodities is taken into account for the Wholesale Price Index.
Differences and Limitations of AICPI
1. There is a particular consumer, viz. Industrial Worker.
2. Some specified goods and services are defined, called a "basket of goods."
3. Along with the price variation of commodities, its consumable quantity will also be considered.
4. All over India, 78 centers are selected to take the average.
Based on the All India Consumer Price, Industrial DA is being paid; it varies in quarters commencing from January, April, July, and October. For January, the AICPI will be the average of the previous September, October, and November. Similarly, for April, it will be December, January, and February; for July, it will be March, April, and May; and for October, it will be June, July, and August, respectively.
When the money devaluation is fully compensated, it is called full DA neutralization. The formula for full DA neutralization is (Total points - Base points) / Base points (in percentage). The AICPI was introduced in India in 1960 and revised in 1982 and 2001. AICPI of 2001 x 4.63 gives AICPI of 1982, and AICPI of 1982 x 4.93 gives AICPI of 1960. For DA calculation, AICPI of 1960 is accepted as the base.
The indexes can be accessed from the web:
Labour Statistics Page 2
Wage Settlements in India
Now in India, mainly two terms of wage settlements are in existence: Wage Settlements of 1.1.1997 and 1.1.2007. The base point on 1.1.1997 is 1708, and on 1.1.2007 is 2884.
I shall quote one example, i.e., the calculation of AICPI for July '10. This is equivalent to the average of the previous March, April, and May; which is recorded as 170, 170, and 172 (Base year 2001). Multiply by 4.63 and round, we get 787, 787, and 796 (Base year 1982). Multiply by 4.93 and round, we get 3880, 3880, and 3924 (Base year 1960). Find the average of these three and round, we get 3895.
DA Calculation Example
DA for 1.1.97 scale: Total points - 3895, Base points - 1708, Total - Base = 2187. % is 2187/1708 x 100 = 128.0 (Correct to one decimal).
DA for 1.1.2007 scale: Total points - 3895, Base points - 2884, Total - Base = 1011. % is 1011/2884 x 100 = 35.1 (Correct to one decimal).
I shall insert an Excel sheet for IDA calculation w.e.f 1.10.2008. You may extend the rows further (as necessary) and just enter the three indexes towards the year 2001 in green color columns. The results will appear in yellow, and red is used for static information.
Regards,
Abbas P.S.