Is paying to advertise your YouTube channel worth it in a year?

[Charlse Carmicheal]

I mean, say if you use £100 for advertising and then people like your content and you get 1200 subscribers then say you get at least 120 views a day the you would get around 12 cents a day which is around 7 pence.

Then in a year 7 x 365 = 2555 pence which is £25.55 but we will times that by 1.5 because you will be likely to get half the subscribers you already have in a year so £25.55 x 1.5 = £38.32 This is just an estimate but would you do this? I need an answer (yes or no) and I need an explanation of why you chose your answer. And also this would be great: If you tried this method on YouTube then tell me the results of what you did.

Thank you very much in advance and if you do try this there is always a chance that my calculations are wrong and that you get 100 subscribers and earn a lot less or even maybe you might get 5000 subscribers and earn a lot more which ever it is it's not my fault if it goes wrong or right.