Calculate YTD for duplicate dates

[srivally]

Hello Experts,

I am very new to PowerBI. I searched a lot to calculate YTD and came to know that we can calculate YTD only when we have distinct continous dates. But in my case I have multiple values for single date and I wanted to calculate YTD. I tried the following calculation
YTD = TOTALYTD(SUM('Sales'[Net Sales]),'Date'[Date]), but I'm getting same values as NetSales. It is not calculating YTD as we are having multiple values for single date. Here Sales is the main table and Date is Calendar table, I have created 1:1 relationship among Sales and Date table by  creating unique column and tried. But no luck as we are having multiple dates in Date table as well. Can anyone help me on this?

Thanks