This blog (http://backpackingafricaforbeginners.com/how-much-does-backpacking-africa-cost/) gives a list of some general prices, but if you want to know the exact amount I spent traveling (broken down by category)after 7 months then check out my E-book. It goes into much more details, and gives a whole list of ways to save money and even ways I saw on how to make money while you travel (www.backpackingafricaforbeginners.com/book).
But seriously no matter how much you end up spending…. Africa is worth it!! Don’t let cost stop you.