There is NO MINIMUM INVESTMENT in joining the ICO. If you'll invest now you'll get 1200 FIT per 1 ETH since the soft cap has not been reached yet. After reaching it you'll get 1000 FIT per 1 ETH. If you want to calculate how much you'll receive for a random amount of investment, you could use their token calculator in the right pane of their site: https://fastinvest.com/en/ico

You'll see accurate information about the ICO and project in their whitepaper https://fastinvest.com/documents/fast-invest-whitepaper.pdf