Hi @cryptoactive, are talking about cloud mining? The percentage return is the same with $30 or $3000 investment. I got started with $30 in July 2016. 6 months later I had $45. I then bought more every month to build my account and using returns to compound my account.
If you mean you need to invest a lot to make say $100 then yes that is true. But don't let that stop you. Just get started ans be patient. You will get to $100 per say over time.