I have a input from a textbox called txtInCost. This is loaded to the spreadsheet with
txtInvCost.Text = Cells(lCurrentRow, 4).Value
and read into the code with
Cells(lCurrentRow, 4).Value = txtInvcost.Text

I want to take the value of txtInvcost, multiply it by 0.18 and output to the sheet with
?????(lCurrentRow, 5)??????

I know I can just use =D3*0.18 on the sheet itself but that won't help me to find out how to code

Can anyone help Please