private async void CriaChart()
        {
            SfChart chart = new SfChart();
            DataService dataService = new DataService();

            try
            {
                PieSeries pieSeries = new PieSeries()
                {
                    ItemsSource = await dataService.GetDataGrid(IdOrcamento),
                    XBindingPath = "TotalVenda",
                    YBindingPath = "TotalLucro",
                    ExplodeIndex = 1,
                    ExplodeRadius = 10
                };

                pieSeries.DataMarker = new ChartDataMarker();
                chart.Legend = new ChartLegend();
                chart.Title.Text = "Gráfico da Venda";
                pieSeries.Label = "TotalLucro";
                pieSeries.DataMarker.LabelContent = LabelContent.Percentage;
                chart.Series.Add(pieSeries);

                this.Content = chart;

            }
            catch(Exception ex)
            {
                string err = ex.Message;
            }
        }

{
    "IdOrcamento": 100030087,
    "TotalVenda": 1094,
    "TotalLucro": 273.71
}