2 sentences

1. 他的估价往往比市场价低。

   tā de gū​jià wǎng​wǎng bǐ shì​chǎng​jià dī.

   His appraisals are often lower than the market price.

   Source: Dong Chinese Dictionary

2. 这件产品的市场价目前正在波动。

   zhè jiàn chǎn​pǐn de shì​chǎng​jià mù​qián zhèng​zài bō​dòng.

   The market price of this product is currently fluctuating.

   Source: Dong Chinese Dictionary