Start-ups (like Zomato, PayTM, Nykaa, etc) are valued on future EPS expectations. Like Zomato hasn't made any profits yet, but considering its market share in India, it could do in future. So, what does the current price of Rs 53 say? Well, I generally compare with average 20 P/E for all companies. So, the price of Rs 53 says, "Zomato should/might be making EPS of Rs 2.65 (current Rs -0.46) in the coming 2-3 years". There is a fact in choosing a 3 year number because 3 years is a common time-frame for investors, after that "they lose their patience".