Rates of change

• Interpret data concerning rates of change over time (e.g., percentage change, birth rates, death rates, house prices, and unemployment levels) when presented in graphical formats.
• Calculate and interpret numerical rates of change over time directly from summary tables by applying context-specific formulas.
• Make basic, logically sound predictions for future metrics using established rates of change formulas.
• Calculate demographic metrics such as the crude birth rate using the formula:

$\text{crude birth rate} = \frac{\text{number of births} \times 1000}{\text{total population}}$