Quote to Sales Order Conversion Ratio

Quote to Sales Order Conversion Ratio

Hello, 

I am trying to create a standard funnel to show my quote to sales order conversion ratio. Here are the parameters: 



This is what the parameter produce: 


However, when I go to my sales order module and do some filtering with the following parameters: Quote name is not empty and created time is this year, it is saying that 325 sales orders. 



How do I know the data that the funnel is pulling? Should I be using different logic to get this conversion ratio?