The calculation of ASMR involves dividing the number of deaths in a specific age group by the population of that age group, then multiplying by a standard base (usually 1,000 or 100,000). The formula is: \[ \text{ASMR} = \left( \frac{\text{Number of deaths in age group}}{\text{Population of age group}} \right) \times \text{Standard base} \] This formula provides a clear picture of the mortality risk for each age group.