Calculate the cost of living index number from the following data:

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15. Calculate the cost of living index number from the following data:
To calculate the Cost of Living Index (CLI) using the weighted average of price relatives method, we use the formula:

$$CLI = \frac{\sum \left(\frac{P_1}{P_0} \times 100\right)W}{\sum W}$$

Where $P_0$ is the base year price, $P_1$ is the current year price, and $W$ is the weight.