A greeting card company incurred the following costs associated with running its business last month: cardstock (thick paper). $9,960; ink, stickers, ribbons, and other card attachments, $7,660; rent on office space. $1,560; rent on factory space, $2.460; office salaries, $5,360; factory labor, $9.060; and advertising. $1,010. How much were its total product costs last month? Total product costs $ How much were its total period costs last month? Total period costs $