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 auricle and external acoustic meatus (or external auditory canal) compose the external ear. The external ear functions to collect and amplify sound, which then gets transmitted to the middle ear. The asymmetric shape of the external auricle introduces delays in the path of sound that assist in sound localization.