### Chinese: 所以他们在听装的定价上，有了一个很大的上升幅度来保障他们的利润空间。
### English: Therefore, they have had a big increase in the pricing of listening outfits to protect their profit margins.
### Errors: There is a major error of terminology is non-standard or does not fit context. terminology is used inconsistently at "listening outfits". There is a major error of incorrect translation includes information not present in the correct translation at "big increase". There is a major error of incorrect translation has stylistic problems at "protect their profit margins".

### Improved English: Therefore, in the price setting of the canned ones, they set it much higher to guarantee their profits.