For 6-month period comparison,We compared the Co.'s selling expenses for the half-year ended 30 June'16 with 30 June'15, we found that the Co.'s selling expenses decreased around 2.9 MB or 30%
due to bonus account decreased 1.2 MB or 100%, Salary decreased by 0.817MB or 26%, Advertisement expenses decreased by 0.668MB or 93% and Commission fee decreased by 0.388MB or 10%.
However, the Co. had auction expenses increased 0.1 MB or 420% has the most reason from the Co. was up for อาคารพิพิธภัณฑ์ธรรมชาติ auction work amounting 60,000 Baht in Mar'16 and
สถาบันวิจัยและพัฒนาครู ขอนแก่น auction work amounting 50,000 Baht in May'16but lose of them.