Percentage calculation

I am working in progress bar concept in ASP.NET MVC 2. Here i have a DropDownList which has 10 values. i want to calculate the percentage for progress bar, e.g. 10 values from DropDownList and i am having a query which returns the value 2. so, out of 10 values i am getting 2. “20 % completed” should be displayed.. How to do this calculation

Quartz Scheduler: How to pass custom objects as JobParameter?

I am planning to write a ASP.NET page to trigger the job on demand. Currently, I am using SimpleTrigger class to trigger the job but none of the __Trigger class supports object type as value in JobParameters and it has come to my knowledge that WCF Tcp binding is used under the hook to pass the parameters to job scheduling engine. I would like to know how to pass custom object (serializable) as job parameters.
Thanks for your advice!