the first answer is increase, need solution from question 2

The FOMC has instructed the FRBNY Trading Desk to purchase $450 million in U.S. Treasury securities. The Federal Reserve has currently set the reserve requirement at 10 percent of transaction deposits. Assume U.S. banks withdraw all excess reserves and give out loans. Assume also that borrowers eventually return all of these funds to their banks in the form of transaction deposits. In the following two questions, dicuss the full effect of this purchase on bank deposits (i.e. the money supply). Question 1: Will there be an increase or decrease in bank deposits? Question.2: By how much the bank deposits will change? Enter your answers in millions (5,500,000,000 should be entered as 5500) : [1]