@Faiz Thanks so much, Faiz! I needed to understand the logic. Ascending order of price seems good.
For the solution of this issue please replace the attached file on this path:
After replacing the file on the mentioned path, please clear the cache of the system. Once you clear the cache then only the changes will appear.
To clear the cache please follow these steps:
Goto Advanced Parameters Tab ---> Performance
On this page you will find the button to clear the cache.
Once you have cleared the cache the changes will start to appear on the front and you issue will be resolved.
@duongledong4 Okay... In case you need any assistance please feel free to contact us.