Thread: Urgent help needed for calculating cost of living index

PLEASE CHECK ATTACHED FILE FOR MORE INFORMATION

PLEASE HELP ME. THANKS IN ADVANCE.
CALCULATE COST OF LIVING INDEX FROM THE FOLLOWING INFORMATION:

COMMODITIES: Percentage of Expenditure: Prices:
2009: 2010:

A 35 150 145

B 10 25 23

C 20 75 65

D 15 30 30

E 20 40 45

excuse my ignorance, but is there a definition or method/formula for calculating the cost of living index?

yes, but in order to apply formula, i need to find out value of q (not) i.e, quantity.

Pretend that the total expenditure is X and then find the value of the index.

You will find that the X's cancel...you should probably check you understand why.