You should change the displayed units in your tune to match the units your logging (metric) or vice versa. To change the tube units, click edit->configure display units, then select the table number in the list and click your desired unit type.
You can also get a fuel tester kit to calculate the ethanol composition and then compare it to what your truck is measuring and then adjust b3671 (I'm assuming your referencing the AFR from ethanol percentage table) accordingly based on the desired AFR for your fuel