Was that profit or loss?

Santa buys a horse for 60$. Then he sells the horse for $70. He then again buys the same horse for $80. And he sells the horse again for $90.

What is Santa's net profit?

Fun Fact: A very easy question, still some people struggle a lot.

Answer:
Profit $20


Explanation:

First Snata bought horse for $60 and sold it for $70.

Making $10 profit.


Santa then bought horse for $80 and sold for $90.

Making $10 profit.

A total of $20 profit.