Consumption field on production picking list journal

Hi,

I found on the help that for the field “Consumption” on the picking list journal lines form.

"Displays feedback on the actual consumption in the BOM unit. If you have defined in the base data for the item from which the estimated material consumption for the production is to be picked automatically, a higher or lower consumption is defined. A lower consumption is entered as a negative amount. "

So doe that mean, if in the standard BOM, we define 2 per series, and actually it only consume 1. I need to specify -1 on this field?

Thanks,

No, it will calculate 2 and auto-post 2

So I need to specify 2 in the consumption field?