008D8BB2 You can't have a project list that doesn't reference any
    fields.

    Explanation:

    You tried to reduce to a constant (REDUCE YACHTS TO $10,000, for
    example). The reduce key must be a variable or a field in the
    record referred to in the REDUCE statement.

    User Action:

    Reenter the statement, giving a global variable or field in the
    record as the reduce key.