We then subtract the cost of goods sold ($126,520 m) from total revenues ($144,077 m) to obtain a gross profit of $17,577 m. To obtain the gross profit margin, we divide the gross profit ($17,577 m) by total revenues ($144,077) for a margin of 12.20%.
Outer ear. The outer ear is the external portion of the ear, which consists of the auricle (also pinna) and the ear canal. It gathers sound energy and focuses it on the eardrum (tympanic membrane). Contents.
The Outer Ear. The outer ear consists of the pinna (the part we can see), and the ear canal down to the eardrum. This part of the ear has several functions relating to hearing. The pinna acts like a funnel; it collects sounds and directs them down our ear canal.