Most online business advice is built on optimism. “Find your passion,” “just start,” “the money will follow.” What it rarely includes is the actual math that determines whether a business idea is worth pursuing in the first place. Customer acquisition cost, profit per order, repeat purchase rate. These are not advanced concepts, but most people building online businesses have never sat down to calculate them.
These articles cover the numbers honestly. How to model unit economics before spending on ads, how to read whether a business is profitable at its current scale, and how to use simple formulas to make better decisions at every stage of growth.
Net profit per order, customer acquisition cost, repeat customer rate, purchase frequency — four numbers that determine whether your online business is viable before you spend a dollar on ads.
Most business ideas fail for reasons that were visible in the numbers before launch. Here is the framework for calculating whether your idea is actually worth building — before you invest time and money in it.