Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is Sum of Round, when College/Junior/Club Team is Brandon Wheat Kings ( WHL ), when Player is Mike Perovich (D), and when Pick is less than 23?

### Inputs:
table_name: table, columns: ['Round', 'Pick', 'Player', 'Nationality', 'College/Junior/Club Team']

### Response:
SELECT SUM Round FROM table WHERE College/Junior/Club Team = brandon wheat kings ( whl ) AND Player = mike perovich (d) AND Pick < 23