Valuing a virtual asset service provider (VASP) is a complex task, as it involves considering various factors unique to the industry. There are some general guidelines and considerations that are generally considered in such valuation.
Why token / cryptocurrency has Value? As a token holder, you can either redeem a particular service at your discretion, OR, sell your unused token to the next consumer at a potential premium. Full document can be download here: ICO Cryptocurrency Valuation