El costo aumentó, por lo tanto la ganancia es la mitad.

Questions & Answers about El costo aumentó, por lo tanto la ganancia es la mitad.

Why does this sentence use la mitad instead of la mitad de, which we are learning in this lesson?
We use la mitad de when we explicitly state what we are halving (like la mitad de la ganancia). In this sentence, the context makes it obvious that the profit is half of what it used to be. When the reference is implied, you drop the de, just like saying "the profit is half" in English.
Could I use entonces instead of por lo tanto here?
Yes! Both can translate to "so" or "therefore." Por lo tanto is slightly more formal and emphasizes a logical consequence (A happened, therefore B is the result). It fits perfectly with business terms like costo and ganancia, but entonces or por eso would also be grammatically correct.
Why is aumentó in the past tense (preterite), while es is in the present tense?
Aumentó is in the preterite because the increase in cost is viewed as a completed event that already happened. Es is in the present tense because it describes the current, ongoing result: the profit is currently half because the cost increased earlier.
Is ganancia related to the verb ganar?
Yes, exactly! Ganar means "to win" or "to earn". La ganancia is the noun form, meaning "the earnings", "the gain", or in business contexts like this one, "the profit".

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