14. A bank expects to raise $30 million in new money if it pays a deposit rate of 7%. It can raise $60 million in new money if it pays a deposit rate of 7.5%. It can raise $80 million in new money if it pays a deposit rate of 8% and it can raise $100 million in new money if it pays a deposit rate of 8.5%. This bank expects to earn 9% on all money that it receives in new deposits. What is the marginal cost of deposits if the bank raises their deposit rate from 7 to 7.5%?