The figures are invented. A typical household's basket contains 40 units of food, 10 units of clothing and 20 units of energy. Prices per unit are: year 1 (base year) food $5, clothing $20, energy $10; year 2 food $5.50, clothing $21, energy $11.50; year 3 food $6, clothing $21, energy $12.15. (i) Calculate the consumer price index for year 2. [2] (ii) Calculate the inflation rate between year 2 and year 3. [2]

Paper 2-style short part (standalone practice; not an IB question).