Numerator divided by denominator.

Total spending on health care, both public and private sources, on medical services and goods, public health and prevention programs and administration in dollars in a given period of time. Total health spending can also be stratified by it's two sectors: public spending and private spending. Public spending on health care is government spending on health care. Private spending on health care is private health insurance and out-of-pocket expenses. Together, public and private spending on health care make up total spending on health care. 

To compare spending over time in Ontario, constant (1997) dollars are used to adjust for both population growth and inflation, which varied over time. To compare spending levels between countries, Purchasing Power Parities (PPPs), which are the rates of currency conversion that equalize the purchasing power of different currencies, is used to eliminate differences in price levels between countries. Health spending per person is converted to a common currency (US dollar) and adjusted to take account of the differences in the purchasing power of the national currencies.