Marco invested $100 in a savings account and did not add to it again. Interest is added every month and his balance for several months is shown in the table.

Marco notices that the interest rate on his credit card is 5.75 times the interest rate for his savings account. What is the interest rate on his credit card?

A) 0.5%
B) 3%
C) 11.50%
D) 17.25%