If you’re a single founder company? 100% of it.
If you have money, a team and you know how to delegate responsibility to have each person handle their designated tasks in their specific timesframes and run lean, then maybe 10% of it. Probably less.
It’s a stressful position, but you don’t need to sacrifice your family, your entertainment, or anything really.
Hell, if you know what you’re doing, you can build your startup part time while working at a day job without any real hiccups. The real question really comes down to how large your want to grow and how fast. Making sure to hit deadlines is usually what causes people to “remove their humanity”.
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Originally posted on Quora.
Leonard Kim consults startups and writes books like The Etiquette of Social Media: How to Connect and Respond to Others in the World of Social Media