Round Of Value of Grand Total Price In Windows Baseppliction

Question

I have to develop one window base application using visual studio 2010 with sql server 2008.

This app one issue of round of rate in grand total following example.

 

 Example:

 

Exam 1 = 112.123      // This value out put will required 110.000 

Exam 2=113.123      // This value out put will required 115.000

Exam 3=114.123       // This value out put will required 115.000 

 Exam 4=116.123     // This value out put will required 115.000

Exam 5=117.123     // This value out put will required 115.000 

 Exam 6=111.123    // This value out put will required 110.000

 Exam 7=118.123 // This value out put will required 120.000

Exam 8=119.123 // This value out put will required 120.000  etc

 

using c# .