How can I make my interest in business and entrepreneurship my college application 'spike'?

So I have just finished and have been really enlightened by this article I still have a couple of years to develop my spike further, so far I have been involved in math and science olympiads and competitions, but not really high up there. I am not really good at competition 'math' but I have taken courses and received credit for college math through self-teaching. My interests lie in computer programming and business, my school doesn't offer AP Computer Science or AP Econ. Business spike: So far I have been buying and selling things online for a profit through amazon. I order things online from China and repackage them for a profit --> How can I develop this? Computer programming: made websites and games (unpublished)