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The people on Coral Island buy only juice and cloth. The CPI basket contains the quantities bought in 2020 (the reference base year).calculate how much they spent in first year and how much of each product they boughtthen using the new price, calculate for the same amount of products, then: (new price / old price) * 100This is your CPI answerthen for interest rate(new price - old price) / old price * 100
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