For my solo-business it looks like this:

  My salary: 65%
  Travel Expense	6.23%
  Taxes – Corporate Tax	6.22%
  Computer – Software	3.35%
  Meals and Entertainment	3.28%
  Education & Training	2.81%
  Wireless + Internet	2.36%
  Office rent: coworking	1.85%
  Computer – Hosting	1.59%
  Accounting Fees	1.55%
  Bank Service Charges	1.41%
  Office Supplies	0.98%
  Computer – Hardware	0.65%
  Domain Names	0.55%
  Photo & Video Equipment	0.43%
  Media Purchased for Clients	0.38%
  Depreciation Expense	0.35%
  Interest Expense	0.19%
  Marketing Expense	0.08%
  Repairs & Maintenance	0.04%
  Product Samples	0.03%
  Business Registration Fees	0.02%
  Production & Supplies	0.02%
  Merchant Account Fees	0.01%
  Unrealized Loss on Foreign Exchange	0.01%