How do you work out percentage body fat? and how much percentage body fat should you have to see your six pack?

i want a six pack, but i know youneed little percentage body fat, so how much percentage body fat should i have for a girl, and how do you work out percentage body fat? any tips for loosing body fat would be great :)

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).