Calculate percentage and progress

.dart

class Home extends StatefulWidget {
  const Home({super.key});

  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: ListView.builder(
            itemCount: list.length,
            itemBuilder: (ctx, i) {
              final progress = list[i].score / 100;
              final percentage = (list[i].score / 100) * 100;
              // Calculate percentage by dividing the actual score by the total value then multiply by 100
              return ListTile(
                leading: const CircleAvatar(
                  backgroundColor: Colors.indigo,
                  child: Icon(
                    Icons.person,
                    color: Colors.white,
                  ),
                ),
                title: Text(
                    "${list[i].name} ${list[i].score.toStringAsFixed(0)} Position"),
                trailing: CircleAvatar(
                  child: Text(
                    "${percentage.toStringAsFixed(0)}%",
                    style: const TextStyle(fontSize: 14),
                  ),
                ),
                subtitle: SizedBox(
                  height: 16,
                  child: LinearProgressIndicator(
                    value: progress,
                    color: getColor(list[i].score),
                  ),
                ),
              );
            }));
  }

  Color getColor(double value) {
    if (value <= 5) {
      return Colors.green;
    } else if (value == 6 || value <= 69) {
      return Colors.yellow;
    }
    return Colors.red;
  }
}

List<Scores> list = [
  Scores('John', 80),
  Scores('Peter', 2),
  Scores('Mercy', 8),
  Scores('Amina', 50),
];

class Scores {
  final String name;
  final double score;

  Scores(this.name, this.score);
}