How does birth change population of a place?​

The change in total population over a period is equal to the number of births, minus the number of deaths, plus or minus the net amount of migration in a population. The number of births can be projected as the number of females at each relevant age multiplied by the assumed fertility rate.

It results into the increase of population. Higher birth rate, quicker the population growth.

Explanation:

The birth is a chief natural factor affecting the population change.