What amount of tax can a sole proprietor expect to pay, on profit of R105504 ,and salary of R281590?

I run a small business, a sole proprieter. Over the 2014/2015 tax year a earned an annual salary of R281590, I also realised a profit of R105504. According to my accountant, I need to pay R22408 in tax for the financial year. Is this correct, as it seems a bit much to me?

Please make use of our SARS income tax calculator to see the correct amount of tax to be paid.