You can make $30 profit with pretty much any method, usually affiliates aim higher, way higher 
When looking at the data from a system like afflow, you need to take the numbers with a big grain of salt and I'm gonna tell you the reason why ... many people use afflow just like a backup solution for traffic that they do not know what to do with otherwise ... so their goal isn't to turn profit, but to make at least something, instead of having a full loss. So large part of the data is not people sending optimized traffic, but all the remnant crap they have ... and obviously the conversion rates for traffic like this will be VERY low.
But the better and more quality traffic you send, the better the results will be.
So for example, an affiliate who is sending low quality GEOs, traffic they didn't intend to buy and often BOTs ... will be making way lower profits than someone, who is actually looking at afflows stats and sending the traffic segments that seem to be performing the best at that time.
On top of that, you based your calculations on a limited amount of conversions that happened in a short time frame ... this is not really statistically significant data sample, so the real results might be WAY off.
@matuloo
you are expert in the field of affiliate market, I want to learn from experts
! First, I set a small goal such as $30/day and gradually improve in next cycle.
I can learn from your says:
1. Webmasters use afflow just avoid wasting traffic, the quality of these traffic is usually very low
2. more quality traffic lead better results.
3. The overall quality of pop traffic is usually low, webmasters sell pop to platform like zeropark just avoid wasting traffic, some webmasters even deliberately manufacturing fake traffic (BOTs) to sell us
4 we need to send lots of pops to afflow for optimize before profitable, and solve the balance between cost and traffic quality
Finally, collect a small amount of data is not statistically significant
I would definitely try the 40-day tutorial instead of the afflow one.
Nowadays it's not as easy to profit from afflow as it was when I wrote the afflow tutorial.
This is not because afflow itself is not as good as before. It's because there just aren't as many good cpa offers around, and many of the good ones are capped.
Because afflow is testing hundreds and maybe thousands of offers, it can't possibly use very customized landers for most of the offers. Based on what I see (even though I know I probably can't see everything), some of the offers are being run direct-linked, and others are using generic landers that aren't super targeted to each offer.
So that is where you can do better than afflow: By choosing offers and perparing landers yourself.
And if you have a big budget, I would suggest that you move to native after familiarizing yourself with pop. Native has better profits potential.
Hope that helps! Please feel free to continue the discussion.
Amy
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@vortex
First of all, Thank you very much! You wrote a very great tutorial about afflow.
After reading your tutorial carefully, I almost did not lose any money in playing afflow. Now I am reviewing your posts, trying to increase some scales($30/day is not only my short term goal written on paper, but also an important signal, it is our local average salary level). I will definitely ask you some questions later, help me please!