bulk discounts

[Saneta]

http://www.english-test.net/toeic/listening/asking_for_a_quote_on_printer_cartridges.html

please explain:
1. bulk discounts = discounts from big size of a product or from a big quantity of product?
2. I think it should be: they're $100 a piece.

Thanks

[Beeesneees]

1. Usually discounts from a big quantity of a single product, but occasionally discounts for buying a large quantity of different products.
2. 'apiece' is legitimate: http://www.oxfordadvancedlearnersdictionary.com/dictionary/apiece
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[Saneta]

please explain in bold:
Rooney and Walcott scored a goal apiece.= each player scored a one goal? two goals in total?
thanks

[Beeesneees]

Each player scored one goal. They scored one apiece / they scored one each.
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Cheers m' dears!