def pivots_col(matrix):
    """
    Checks to see if pivots are required due to negative values in right column,
    excluding the bottom value.
    
    Args:
    
        matrix (numpy array): matrix to be reviewed.
        
    Returns:
    
        Flag (bool): True or False indicating whether a negative element was found.
    """
    
    m = min(matrix[:-1, -1])
    if m >= 0:
        return False
    else:
        return True