This is an interesting question.
It really depends on how you marketing and where your traffic sources are coming from.
You can earn 100% profit if you’re marketing programs via Facebook messenger. Just find a good program, get your link and message people who might be interested.
On the other hand, you might decide to build an email list, so you’ll need funnel software (which in most cases is a monthly fee).
Then you’ll need to build that list, through various free and paid sources. So there will be an expense for this too.
Therefore, you won’t earn 100% profit BUT you can scale faster and easier using automation.
At the end of the day, compared to other businesses and business models, there really isn’t anything that comes close to the profit that an affiliate marketer can make.
Not to mention, you don’t have to handle all the other problems that come with running a business, such as customer service, refunds, product delivery etc.
Just get your affiliate link and go 😉