How can we estimate the "Worker population" ratio of a country?

Divide the total number of workers in India by the population in India and multiply it by 100

You might have already studied, in lower classes, the meaning of the term ‘population’. Population is defined as the total number of people who reside in a particular locality at a particular point of time. If you want to know the worker-population ratio for India, divide the total number of workers in India by the population in India and multiply it by 100, you will get the worker-population ratio for India.