Follow the link in the OP, click “>” to the right of DISCUSSION, click INVESTING FAQS, click More FAQs
Expand “How much can I invest?”
and
Expand “How do I know if I am an accredited or non-accredited investor?”
and
Expand “What is the difference between Regulation Crowdfunding and Regulation A+?”
and
Expand “How do I calculate my net worth?”
and of course everything is in US$ so if you are not in the US then you will need to use a reasonable exchange rate to convert values from your local currency to US$.