1 Small businesses: 2  A non-profit in Philadelphia paid around $3,500 for basic HR services such as regulatory compliance, payroll, and HR management. 3  An IT company from Colorado paid around $100 per employee per month for payroll and benefits administration.
Ejection fraction is usually expressed as a percentage. A normal heart pumps a little more than half the heartâs blood volume with each beat. (1). A normal LVEF ranges from 55-70%. A LVEF of 65, for example, means that 65% of the total amount of blood in the left ventricle is pumped out with each heartbeat.
Ejection fraction. An ejection fraction (EF) is the fraction of blood ejected from a ventricle of the heart with each heartbeat. EF is readily compared with the ancient term Systole, understood as a Gathering of the heart's fibers.