Go into 'My Account' and it will show at the top of the page. For more info click on the earnings tab. All this info is available in more detail here : http://hubpages.com/faq/
You get paid by a combination of Adsense (direct to your bank account assuming you have registered with them and posted your pub code in your account settings, $100 required to hit payout), and Hubpages, (if you use the HPAD program) which is paid to you on the 28th of each month into your Paypal account, from where you can draw it out if you wish or spend it online, (you have to hit $50 before you get paid out on HP Ads).
The learning centre is also very useful: