Cullumber Delivery Service reports the following costs and expenses in June $2022.$

Indirect materials

$$,7,760$

Depreciation on delivery equipment

$10,390$

Dispatcher's salary

$4,650$

Property taxes on office building

$830$

CEO's salary

$11,160$

Gas and oil for delivery trucks

$2,950$

Driver's salaries

$15,810$

Advertising

$4,730$

Delivery equipment repairs

$260$

Office supplies

$650$

Office utilities

Repairs on office equipment

$($b$)$

Determine the total amount of period costs.

Period costs $