While some of these are very simple and straightforward, others are more complicated, while another set focuses on lost opportunity costs. (thecollegeinvestor.com)
Consider Lost Opportunity Costs: for example: the time it takes to go to an instructor - led training vs. time it takes for online course. (elearningindustry.com)
Consider the fact that, whether you're borrowing money at exorbitant interest rates or paying cash, you're still losing money because when you spend your own cash without paying yourself interest, you're losing the opportunity cost of that capital invested elsewhere. (insuranceandestates.com)