A family establishes a university savings account on the birth of their daughter. They make monthly deposits of $100 one month after her birth. This monthly deposit keeps on for the first 10 years. For the next 5 years, the parents make the monthly deposits of $200. At the same time, the bank interest rate is changed during the time of deposits. A nominal interest of 6% compounded monthly is applied for the first 10 years and of 8% compounded monthly is applied thereafter. On her 19th birthday, the first-year university tuition fee is about to be withdrawn. Calculate the balance of savings account just before this first withdrawal