Dirk sells amulets at a Ren Faire. He sells for 2 days and each day he sells 25 amulets. Each amulet sells for 40 dollars and they cost him 30 dollars to make. If he has to give 10% of his revenue to the faire, how much profit did he make?
Please answer the following question by reasoning step-by-step.
300
He sold 2 * 25 = 50 amulets.

So he made 40 * 50 = $2000.

The faire took 2000 *.

1 = $200.

So he kept 2000 - 200 = $1800.

The amulets cost 50 * 30 = $1500 to make.

So he had a profit of 1800 - 1500 = $300.

.

So, the answer is 300