Sell 1 million products at $1 a piece
Sell 100000 products at $10 a piece
Sell 10000 products at $100 a piece
Sell 1000 products at $1000 a piece
Sell 100 products at $10000 a piece
Sell 10 products at $100000 a piece
Sell 1 product at $1000000 a piece
Simple and easy

Can you guess why it is so hard to make your first million ?
Your mind is so vast ,but what about the expenses and capital that you are going to use for buying and selling the product. You did not calculate it. For selling 1 product at $1M a piece,it could be a luxurious car or a house and lot but you will earn that million if you owned the product but if you just rely on commission then.if very impossible to earn such huge amount.
If you want to sell 1 million products you don't have to buy all products at once and after sell them... most people make this simple mistake
You start like this :
Step 1: buy 1 product for 0.2 cents and you sell it for 1.2$
Step 2: buy 2 products for 0.4 cents and you sell them for 2.4$ ...
Step 3: buy 4 products for 0.8 cents and you sell them for 4.8$ ...
Etc etc...
Or you do dropshipping ...
It's a mistake to say that you need high capital to sell 1 million cheap products...