Which results in a higher prices: a 10% markup followed by a 10% discount or a 10% discount followed by a 10%mark up?

Say an item costs $200.

Example A:

10% markup is $20.

meaning that the item now costs $220.

10% discount on a $220 item is $22.

Now the item costs $198.

Example B:

10% discount is $20.

the item now costs $180.

10% markup is $18.

Now the item costs $198.

They cost the same.