Task: Question Answering
Input (English): Problem: a store reported total sales of $ 385 million for february of this year. if the total sales for the same month last year was $ 320 million, approximately what was the percent increase in sales ?
Options: a. 2 %, b. 17 %, c. 20 %, d. 65 %, e. 83 %
Output (English): c