Opportunity cost calculation formula: opportunity cost = net present value of income-net present value of expenditure. Opportunity cost refers to the opportunity for an enterprise to give up another business activity in order to engage in one business activity, or to give up another income when using a certain resource to obtain a certain income.
The income or income of another business activity is the opportunity cost of the business activity. In life, some opportunity costs can be measured by money. For example, if farmers get more land, they can't choose to raise chickens if they choose to raise pigs. The opportunity cost of raising pigs is the benefit of giving up raising chickens. However, some opportunity costs can't be measured by money, for example, choosing between reading and studying in the library or enjoying the happiness brought by TV series. Opportunity cost = net present value of income-net present value of expenditure.