How do you calculate absolute growth rate?

How do you calculate absolute growth rate?

Absolute Growth Rate (AGR), if referred to the size of a plant, represents the increase in its mass per unit of time: AGR = g day-1. If referred to the number of organs it is a change in the number, usually an increase, per unit of time.

What is the formula of population growth rate?

Net reproductive rate (r) is calculated as: r = (births-deaths)/population size or to get in percentage terms, just multiply by 100. the population is so much bigger, many more individuals are added. If a population grows by a constant percentage per year, this eventually adds up to what we call exponential growth.