1 the total number of white blood cells in a microliter (1x10-6 liters) of blood, reported as an absolute number of X thousands of white blood cells, and. 2  the percentage of each of the five types of white blood cells.
Benefits to Society. A progressive tax system allows a government to collect a larger amount of tax revenue, which, according to a research paper on sciforums.com, can be used for the benefit of public services, such as education, welfare and medical assistance. Small Business Benefits
A progressive tax rate imposes an increasing marginal tax rate as the tax base increases. As a taxpayer's tax base increases, both the marginal tax rate and the taxes paid increase. A common example is the U.S. federal income tax. A regressive tax rate imposes a decreasing marginal tax rate as the tax base increases.