Dress$$ Designers, Inc., a clothing$$ retailer, had the following total costs categorized by the value chain$$ concept:

Research and development

$$ $$53,100$

Design

$$ $$17,900$

Purchases

$$ $$72,800$

Marketing

$$ $$42,300$

Distribution

$$ $$58,100$

Customer service

$$ $$35,500$

What were the$$ company's period$$ costs?