The people on Coral Island buy only juice and cloth. The CPI market basket contains the quantities bought in 2016. The average household spent $60 on juice and $30 on cloth in 2016 when the price of juice was $2 a bottle and the price of cloth was $5 a yard. In the current year, 2017, juice is $4 a bottle and cloth is $6 a yard. Calculate the CPI and the inflation rate in 2017.