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

### Instruction:
what is the sum of the wkts when the ovrs were bigger than 2 and econ was bigger than 7.84?

### Inputs:
table_name: table, columns: ['Player', 'Wkts', 'Runs', 'Econ', 'Ovrs']

### Response:
SELECT SUM Wkts FROM table WHERE Ovrs > 2 AND Econ > 7.84