How do I get highest CTR(CTR = clicks/impressions) given columns for clicks and impressions

[Izzy90]

Given 2 columns with 161 rows of data for clicks and impressions of a campaign, I am trying to find highest ClickThroughRate(CTR=clicks/impressions) of all. How do I do it? 

I am looking for approaches without creating a new column for CTR and running MAX function on it. 

[#2 · Accepted solution]

@Izzy90 

Let's say clicks are in A2:A162 and impressions in B2:B162.

Use the following formula, confirmed with Ctrl+Shift+Enter to turn it into an array formula:

=MAX(A2:A162/B2:B162)

[#3]

It worked. That was easy. Thank you :)

[#4]

Would you please help me with the other question I have in here
https://techcommunity.microsoft.com/t5/excel/find-cost-per-1000-impressions-over-first-10-days/m-p/2... 
Thanks in advance :)