1st time post, need help trying to have excel generate a cost based on a code I select.

Example I want to pick from column A and instead have cell show value from B.
So if I pick 11200 I want cell to show $121.00


A B
11200 $121.00
11201 $27.00
11300 $97.00
11301 $132.00
11302 $158.00