REDUCE is used to aggregate values like totals, counts, etc., in a clean, functional style. *&---------------------------------------------------------------------* *& Report  ZREP_LCLCLASS *& *&---------------------------------------------------------------------* *& *& *&---------------------------------------------------------------------* REPORT zrep_lclclass. TYPES: BEGIN OF ty_order,          id     TYPE i,          amount TYPE i,        END OF ty_order. DATA: lt_orders TYPE STANDARD TABLE OF ty_order WITH EMPTY KEY,       lv_total  TYPE i. lt_orders = VALUE #(   ( id = 1 amount = 100 )   ( id = 2 amount = 250 )   ( id = 3 amount = 150 ) ). lv_total = REDUCE i( INIT sum = 0                      FOR order IN lt_orders                      NEXT sum = sum + order-amount ). WRITE: / 'Total Amount:', lv_total. Output: Total Amount: 500