Answer:
We use it in everyday life to do things such as Money or Population. Like your pay could go up or the population somewhere can increase to a point where the country or town has to raise prices or lower them, and get more of something.
Example:
You have someone babysit for you and you give them $15 a hour. They do a lot less work then you expected and spent most of the time looking at there phone. You might lower the pay due to them most the time just playing on there phone.
