Hmmmmmm. I see in the thread that you posted a screen shot of that in Nov 2014 @lubos said FIFO. In May 2014, at What inventory system is adopted by Manager? he said weighted average. In June 2015 he said perpetual weighted average cost, and cited the same forum topic. In February 2014, at How to treat inventory items with no price - #5 by lubos, he also said perpetual weighted average cost.