Were almost all out of burger patties, but the demand for a burger is very high right now.
How much is a burger?
A burger costs $7
Why is it so expensive for one burger?!
Well it's because we don't have enough burger patties being shipped to us right now so the Demand-Pull theory in economics says that since the supply has decreased and demand increased then inflation occurs.
We used to charge $2 for a burger but now we have to increase the price since the supply is low but the demand is high.
Okay, I understand. I'll take a burger and fries please.