KMyMoney either calculates the new interest rate or the amount for principal and interest. If you know the interest rate then enter it here. If KMyMoney should calculate this value for you, then leave the field blank.
KMyMoney pode calcular a nova taxa de xuro ou o importe de principal e xuros. Se coñece a taxa de xuro indíquea aquí. Se KMyMoney debe calcular este valor, deixe este campo valeiro.