On the migration date, both the balance of the savings products and the interest calculated to date will be taken into BT according to the OTP calculation formula. After the takeover, the calculation formula applied in BT will be applied and prorated to 360 calendar days. The percentage interest rate for the product held in the OTP will also be applied in BT until the first maturity, when it will be updated in line with BT's interest rates at the maturity date / automatic extension.