Rounded off total income

Rounded off total income

       Int32 roundedAmt;  
       Int32 torounded = Convert.ToInt32(lblTotalIncome.Text);  
       int lastdigit = torounded % 10;  
       if (lastdigit >= 5)  
       {  
         roundedAmt = torounded - lastdigit + 10;  
       }  
       else  
       {  
         roundedAmt = torounded - lastdigit;  
       }  
       lblRoundedOf.Text = Convert.ToString(roundedAmt);  

Thanks & Regards
Santosh