Datagridview Count Problem

Question

I am new in code. Below is a sample, here sumOthers gives me fine result but countOthers does not give me the correct result. Please help me. Here is my code:

 

var countTotal = Convert.ToInt32(count1 + count2 + count3);

double sumTotal = Convert.ToDouble(sum1 + sum2 + sum3);

var count220 = 0;

foreach (DataGridViewRow g1 in dataGridView1.Rows)

{

if (g1.Cells[5].Value.ToString() != "" && g1.Cells[5].Value.ToString() != null)

count220 = count220 + Convert.ToInt32(g1.Cells[5].Value);

}

double sum220 = 0;

foreach (DataGridViewRow g1 in dataGridView1.Rows)

{

if (g1.Cells[5].Value.ToString() != "" && g1.Cells[5].Value.ToString() != null)

sum220 = sum220 + Convert.ToDouble(g1.Cells[5].Value);

}

var countOthers = count220 - countTotal;

double sumOthers = sum220 - sumTotal;

PdfPCell NoOfRemittance220 = new PdfPCell(new Phrase(countOthers.ToString()));

NoOfRemittance220.Colspan = 2;

NoOfRemittance220.HorizontalAlignment = Element.ALIGN_CENTER;

table.AddCell(NoOfRemittance220);

PdfPCell AmountBDT220 = new PdfPCell(new Phrase(sumOthers.ToString()));

AmountBDT220.Colspan = 3;

AmountBDT220.HorizontalAlignment = Element.ALIGN_RIGHT;

table.AddCell(AmountBDT220);