Unified management of interest rate adjustment data, automatic matching of interest rate adjustment criteria, business rent table, accounting rent table, automatic calculation of allocation data, and retention of historical versions, supporting special adjustments after automatic interest rate adjustment. During the execution of interest rate adjustment, normal business processing is not affected and any step back operation can be performed. After completing the confirmation, if extreme abnormal handling situations are found, a business rollback operation can be performed to restore the data to the pre interest adjustment state and readjust it.