Demo 2 Line

CREATE PROCEDURE [dbo].[dashboard_tst-dashboard_lineSumOrders_getPanelChart]
@username nvarchar(128)
AS
BEGIN
    declare @days nvarchar(max)
    select @days = '13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28'

    declare @ndays table (n int)
    insert into @ndays
    select value from dbo.split(@days,',') where value <> 0

    select 'line' Type,
           '' Title,
           400 Width,
           400 Height,
           @days as CommaLabels

    select 'March 2020' Title,
            (select stuff( (
                        select ','+ X
                          from (select isnull(cast((select cast(sum(cnt*price) as int)
                                                    from tst_orders where created between '2020/03/13' and '2020/03/28'
                                                    and day(created) = n) as nvarchar),'0') as X
                                from @ndays) t1
                        for xml path(''), type
                           ).value('.', 'varchar(max)'), 1, 1, ''
                         )
            ) Value,
           '#6610f2' Color
END