The "Historical amounts - modify" menu choice allows you to modify values in the historical average wage series, benefit increases, and wage bases that have been entered via the Historical amounts - update menu item. This selection is not available if you have not entered any values via that menu item. The form has the following entries:
After you have modified any of the four new historical amounts for any of the available years, the new values are saved in the Registry. Press Cancel to exit from the form without saving any new values to the Registry.