Chrissy currently has a credit card that charges 15 percent interest. She usually carries a balance of $500. Chrissy has received an offer for a new credit card with a teaser rate of 3 percent for the first three months; after that, the rate increases to 19.5 percent. Assume that interest is compounded daily. What will her total annual interest be with her current card? What will her interest be the first year after she switches? Should she switch?