How to do that on radzen graph chart?

I wanted to show also the diffrence in precents between 2019 and 2020

@using System.Globalization

@code {
bool smooth = false;
bool showDataLabels = false;

class DataItem
{
    public string Date { get; set; }
    public double Revenue { get; set; }
}

string FormatAsUSD(object value)
{
    return ((double)value).ToString("C0", CultureInfo.CreateSpecificCulture("en-US"));
}

string FormatAsMonth(object value)
{
    if (value != null)
    {
        return Convert.ToDateTime(value).ToString("MMM");
    }

    return string.Empty;
}

DataItem[] revenue2019 = new DataItem[] {
    new DataItem
    {
        Date = ("2019-01-01"),
        Revenue = 234000
    },
    new DataItem
    {
        Date = ("2019-02-01"),
        Revenue = 269000
    },
    new DataItem
    {
        Date = ("2019-03-01"),
        Revenue = 233000
    },
    new DataItem
    {
        Date = ("2019-04-01"),
        Revenue = 244000
    },
    new DataItem
    {
        Date = ("2019-05-01"),
        Revenue = 214000
    },
    new DataItem
    {
        Date = ("2019-06-01"),
        Revenue = 253000
    },
    new DataItem
    {
        Date = ("2019-07-01"),
        Revenue = 274000
    },
    new DataItem
    {
        Date = ("2019-08-01"),
        Revenue = 284000
    },
    new DataItem
    {
        Date = ("2019-09-01"),
        Revenue = 273000
    },
    new DataItem
    {
        Date = ("2019-10-01"),
        Revenue = 282000
    },
    new DataItem
    {
        Date = ("2019-11-01"),
        Revenue = 289000
    },
    new DataItem
    {
        Date = ("2019-12-01"),
        Revenue = 294000
    }
};

DataItem[] revenue2020 = new DataItem[] {
    new DataItem
    {
        Date = ("2019-01-01"),
        Revenue = 334000
    },
    new DataItem
    {
        Date = ("2019-02-01"),
        Revenue = 369000
    },
    new DataItem
    {
        Date = ("2019-03-01"),
        Revenue = 333000
    },
    new DataItem
    {
        Date = ("2019-04-01"),
        Revenue = 344000
    },
    new DataItem
    {
        Date = ("2019-05-01"),
        Revenue = 314000
    },
    new DataItem
    {
        Date = ("2019-06-01"),
        Revenue = 353000
    },
    new DataItem
    {
        Date = ("2019-07-01"),
        Revenue = 374000
    },
    new DataItem
    {
        Date = ("2019-08-01"),
        Revenue = 384000
    },
    new DataItem
    {
        Date = ("2019-09-01"),
        Revenue = 373000
    },
    new DataItem
    {
        Date = ("2019-10-01"),
        Revenue = 382000
    },
    new DataItem
    {
        Date = ("2019-11-01"),
        Revenue = 389000
    },
    new DataItem
    {
        Date = ("2019-12-01"),
        Revenue = 394000
    }
};

}

Hi @nikita.gelfman666,

The Radzen.Blazor chart does not support this out of the box.