Assume we have three commodities X, Y and Z with the following quantities and prices in 2019 (base year) and 2020 respectively

Subject:FinancePrice:2.86 Bought7

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Assume we have three commodities X, Y and Z with the following quantities and prices in 2019 (base year) and 2020 respectively.

Year	X		Y		Z
2019	Quantity	Price	Quantity	Price	Quantity	Price
	100	$1.20	120	$2.10	180	$3.25
2020		$1.44		$2.23		$3.88

• Calculate the consumer price index in the year 2019. Show your calculation.
• Calculate the CPI in year 2020. Show your calculation.