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  Verb:         SUBTRACT
 
  Function:     Subtracts one or more numeric data items from another
                and stores the result.
 
  Syntax:       Which format?  ◄Simple►   GIVING   ◄CORRESPONDING►
 
                  ┌──────────────┐
                  ▼              │
     ►►──SUBTRACT─┬─identifier-1─┬─FROM─┬─identifier-2─┬──────────►
                  └─literal-1────┘      └─literal-2────┘
 
               ┌──────────────────────┐
               ▼                      │
     ►──GIVING identifier-3─┬─────────┬─────────────────►
                            └─ROUNDED─┘
 
     ►─┬────────────────────────────────────────┬───────►
       └─┬──┬─SIZE ERROR imperative-statement-1─┘
         └ON┘
 
     ►─┬────────────────────────────────────────────┬───►
       └─NOT─┬──┬─SIZE ERROR imperative-statement-2─┘
             └ON┘
 
     ►─┬──────────────┬──►◄
       └─END-SUBTRACT─┘
                                    -♦-