You can read the value using Read range activity. Loop through each row and get the values from column “Input”. First use a if condition and check Cint(CurrentRow(0))>0. If greater than zero then you need to divided by 100000 and use write cell to write the value. Else write cell as Zero.
Once you have your input as a data table, add a new data column (Expected Output)
Then use a for each row to loop through, as you have mentioned you can check if it = 0 then set the expected output to 0 OR check if its empty or null (String.IsNullOrWhiteSpace(CurrentRow.Item(input))
It is not touching the original datatable. Just takes the value, perform the operation and return new value be it 0 or the value after divinding with 100000
It returns new RowCollection(of Double)