I guess you are asking about the difference between a softcap and a hardcap. Soft cap is the minimum amount of money a cryptocurrency can receive from investors in its Initial Coin Offering (ICO). An ICO is a limited-time process by which new cryptocurrencies make their coins publicly known and begin selling them directly to people while hardcap is the maximum amount a crowdsale will receive. For Cryptosouk excess tokens will be burned.