There are formulas. Collecting all variables could take a lifetime. talk to a life insurance agent. They invest in people's lifespans routinely & have it down to a science.
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Standard of living
subtracting the death rate from the birthrate
wealth
Death Rate is the actual rate of death where Crude Death Rate is a guess on the death rate.
what factor determine the rate of weathering
mortality rate - death rate
the birth rate is 65% and death rate is 35%
birth rate - 295 death rate - 876 rg
The birth rate is the rate of people that have be born and the death rate is the rate of the people who have died.
birth rate greater than death rate
The death rate in England is 100%.
The death rate of Brazil is 6