Versão rodando no Flutter 3.0.1 - VSCode (27/05/2022)

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: const Text('Transferências'),
          ),
          body: const ListaTransferencias(),
          floatingActionButton: const FloatingActionButton(
            onPressed: null,
            child: Icon(Icons.add),
          ),
        ),
      ),
    );

class ListaTransferencias extends StatelessWidget {
  const ListaTransferencias({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        ItemTransferencia(
          transferencia: Transferencia(100.00, 859528),
        ),
        ItemTransferencia(
          transferencia: Transferencia(200, 859528),
        ),
        ItemTransferencia(
          transferencia: Transferencia(300, 859528),
        ),
      ],
    );
  }
}

class ItemTransferencia extends StatelessWidget {
  final Transferencia transferencia;
  const ItemTransferencia({
    Key? key,
    required this.transferencia,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Card(
      child: ListTile(
        leading: const Icon(
          Icons.monetization_on,
          color: Colors.green,
        ),
        title: Text('R\$ ${transferencia.valor.toString()}'),
        subtitle: Text(transferencia.numeroConta.toString()),
      ),
    );
  }
}

class Transferencia {
  final double valor;
  final int numeroConta;

  Transferencia(this.valor, this.numeroConta);
}