How to calculate lat pay amount in C#

DateTime fromDate = Convert.ToDateTime(lblfdate.Text);//from date already inserted in db
DateTime toDate = Convert.ToDateTime(txtdate.Text);//to date already inserted in db
//diff b/w from date and to date is 100 days
int temp;
            
int cbal = 0;
            
for (DateTime date = fromDate; date < toDate; date = date.AddDays(1))
{
    temp = (Convert.ToInt32(txtnamt.Text) / Convert.ToInt32(lbldays.Text));
    cbal=cbal+temp;   
}
txtcamt.Text = Convert.ToString(cbal);