Exchange and price (por)

Expressing price with por

When buying or selling, use the preposition por to state the price of an item. It translates directly to "for" in phrases like "for ten euros."

The product was very good, but I did not buy it for ten euros.
El producto era muy bueno, pero no lo compré por diez euros.
We like this product, do you sell it for that price?
Nos gusta este producto, ¿lo vendes por ese precio?

Bargains and negotiating

Whether you find a bargain (una ganga) or need to negotiate (negociar) a discount (un descuento), por connects the purchase to the amount of money paid.

The house was a bargain for that price.
La casa era una ganga por ese precio.
The girl asked for a discount and bought the skirt for little money.
La chica pidió un descuento y compró la falda por poco dinero.

Agreements and deals

When making a deal (un trato) or reaching an agreement (un acuerdo), use por to indicate the item being bought or sold, or the amount offered.

We made a deal for the flat and signed the agreement.
Hicimos un trato por el piso y firmamos el acuerdo.
Do you accept one hundred euros for your camera?
¿Aceptas cien euros por tu cámara?

Trades and exchanges

Por is also the go-to preposition for swapping, trading, or substituting one thing for another. You will frequently hear it used with the verb cambiar (to exchange) or when offering an exchange (un intercambio).

I do not accept your offer, but I will trade you the bike for the motorbike.
No acepto tu oferta, pero te cambio la bici por la moto.
I'm offering a good trade: I'll give you milk for your potatoes.
Ofrezco un buen intercambio: te doy leche por tus patatas.

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