LOOP AT IT_ABONADOS.
CALL FUNCTION 'WRITE_FORM'
EXPORTING
* ELEMENT = ' '
WINDOW = 'MAIN'
EXCEPTIONS
ELEMENT = 1
FUNCTION = 2
TYPE = 3
UNOPENED = 4
UNSTARTED = 5
WINDOW = 6
BAD_PAGEFORMAT_FOR_PRINT = 7
SPOOL_ERROR = 8
at end of it_abonados-NOMBRE.
write:/ suma.
clear suma.
endat.
at new it_abonados-NOMBRE.
new-page.
*perform cabecera. " (si la hay)
endat.
SUMA = SUMA + IT_ABONADOS-PRECIO.
ENDLOOP.
Suerte, que esto funciona.