Year Price of Quantity of Price of Coke Quantity of Popcorn Popcorn Coke 1997 $2.00 100 $1.00 100 1998 $2.50 90 $0.90 120 1999 $2.75 105 $1.00 130 Assume the base year is 1997 for prices, and for setting the basket. What is the inflation rate from 1998 to 1999? O 10.3% O 11.7% O 12.5% O 6.2%