How do round a number say 83256851 to 83256900 ?

I got the Solution :-

 

int i1 = Convert.ToInt32(value.ToString());
double i2 = Convert.ToDouble(i2) / 100;
int i3 = Convert.ToInt32(i2);
int i4 = i3 * 100;

value1.Text=i4.ToString();