Custom adapter adds rows when scrolling

I have created my custom adapter class, which is responsible for loading the custom elements within my listview.

public class Adaptador_calidades extends SimpleCursorAdapter {
private Context mContext;
private Context appContext;
private int layout;
private Cursor c;
private final LayoutInflater inflater;
int xCajas, xPeso;
double xPrecio,xFinal;

public Adaptador_calidades(Context context, int layout, Cursor c, String[] from, int[] to) {
    super(context, layout, c, from, to);
    this.layout = layout;
    this.mContext = context;
    this.inflater = LayoutInflater.from(context);
    this.c = c;

}

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
    return inflater.inflate(layout, null);
}

@Override
public void bindView(View view, Context context, Cursor cursor) {
    TextView Cajas = (TextView) view.findViewById(R.id.calCajas);
    TextView Precio = (TextView) view.findViewById(R.id.calPrecio);
    TextView Peso = (TextView) view.findViewById(R.id.calPeso);
    TextView Nombre = (TextView) view.findViewById(R.id.itemCalidad);
    TextView Codigo = (TextView) view.findViewById(R.id.codCalidad);

   //Datos desde sqlite, los mostramos en el listview personalizado
    Cajas.setText(c.getString(c.getColumnIndexOrThrow("cajas")));
    Precio.setText(c.getString(c.getColumnIndexOrThrow("precio")));
    Peso.setText(c.getString(c.getColumnIndexOrThrow("peso")));
    Nombre.setText(c.getString(c.getColumnIndexOrThrow("nombre")));
    Codigo.setText(c.getString(c.getColumnIndexOrThrow("_id")));

    xCajas = xCajas + Integer.parseInt((c.getString(c.getColumnIndexOrThrow("cajas"))));
    xPeso = xPeso + Integer.parseInt((c.getString(c.getColumnIndexOrThrow("peso"))));
    xPrecio = xPrecio + Double.parseDouble((c.getString(c.getColumnIndexOrThrow("precio"))));

    //Calculamos el peso
         if (!Peso.getText().toString().isEmpty() && !Precio.getText().toString().isEmpty()) {
             xFinal = xFinal + (Double.parseDouble(Peso.getText().toString()) * Double.parseDouble(Precio.getText().toString()));
         }

         Separacion_App Calidades = (Separacion_App) context; //Mando la suma al textview total
         Calidades.setDatos(xCajas, xPeso, xPrecio, xFinal);
}

Constructor that receives the information and shows it in the total:

public void setDatos(int xCajas, int xPeso, double xPrecio, double xFinal) {
        iCajas.setText(String.valueOf(xCajas));
        iPeso.setText(String.valueOf(xPeso));
        iPrecio.setText(String.valueOf(xPrecio));
        CostoFinal = String.valueOf(xFinal);
}

  

Send my adapter

public void ConsultarCalidad() {
    try {
        Cursor cursor = basededatos.ConsultarCalidad();
        if (cursor == null) {
            Toast.makeText(this, "Se ha presentado un problema al cargar", Toast.LENGTH_LONG).show();
            return;
        }

        if (cursor.getCount() == 0) { 
            Toast.makeText(this, "Ningún elemento", Toast.LENGTH_LONG).show();
        }

        String[] columns = new String[]{
                basededatos.COLUMN_NOMBRE,
                basededatos.COLUMN_IDCALIDAD,
                basededatos.COLUMN_CAJAS,
                basededatos.COLUMN_PESO,
                basededatos.COLUMN_PRECIO
        };

        int[] boundTo = new int[]{
                R.id.itemCalidad,
                R.id.codCalidad,
                R.id.calCajas,
                R.id.calPeso,
                R.id.calPrecio
        };

//Mando llamar a mi customadapter anter mencionado.
        customAdapter = new Adaptador_calidades(this, R.layout.item_calidad, cursor, columns, boundTo);
        ListCalidades.setAdapter(customAdapter);

    } catch (Exception ex) {
        Toast.makeText(this, "Se ha producido un error "+ex, Toast.LENGTH_LONG).show();
    }

I think it's the most important thing to mention. Apparently everything is in the bindView or some other method that I can use? When I give a save of dialog I will call the ConsultarCalidad() method again