You can always find lower and lower prices if you keep searching on the Internet. You can get the translation done at a lower cost, but you will never actually save with a cheap translation. The reason is simple. Qualified professional translators seldom, if ever, take jobs at a very low price. If someone offers you very low prices, you can imagine who will actually do the translation. Poor translators deliver poor translation. And in the end you have to pay more to improve the translation, not to mention the potential business opportunities you might lose.
You will regret it if you choose the translation companies that offers the lowest quotes.