[Grammar] Expressing a comparison

bahar57 said:

Dear teachers,
I need to express a comparison between two experimental treatments: A and B. For instance, 25% increase in nitrogen levels has happened in treatment A. Therefore, is the following sentence true?
The nitrogen level in treatment A has increased 25% to the treatment B.
If this sentence is not true, how should I explain this comparison?
Thank you.
Bahareh

Click to expand...

charliedeut said:

However, please note that this comparison is only valid if the original nitrogen levels of both A and B were the same, and it was only increased in A in order to compare the results.

charliedeut

Click to expand...

bahar57 said:

Dear Charliedeut,

Thank you for your kind attention as well as your answer.
Can I know your opinion about the following sentence?
The nitrogen level in treatment A has increased by 25% compared to the treatment B.

Thanks again.
Bahareh

Click to expand...