Can anyone please give some examples which explains below metrics
Media cost spent for different channel vs Click through Rate vs Cost per thousands
Cost per mille (CPM), also called cost per thousand (CPT) is a commonly used measurement in advertising. It is the cost an advertiser pays for one thousand views or clicks of an advertisement. Radio, television, newspaper, magazine, out-of-home advertising.
CTR is the number of clicks that your ad receives divided by the number of times your ad is shown: clicks ÷ impressions = CTR. For example, if you had 5 clicks and 1000 impressions, then your CTR would be 0.5%. Each of your ads and keywords have their own CTRs that you can see listed in your account.