Many people estimate prices based on the total supply of the coin, but even this is not accurate. When the coin is first launched, the price will be low, after there are lots of people interested, the price of the coin will become expensive. LINK is currently $20, possibly rising to $100 while the bull season is still possible, and that makes sense.
The number of people interested depends on the development of the product they have. When LINK has good enough development, the price will increase as it is now. In essence, when we find new tokens that are created, we have to research what the project being developed will be like and how many people are interested. So with an investment of $100 you will get a lot of profit.