Stacey is starting a business and needs $$20,000$ for next year. To finance the business, she plans to sell her financial investments to raise the money.

Suppose her financial investments earn her an average return of $7\%$ per year $($assume the return is $7\%$ next year as well$).$

For simplicity, assume there is no taxes on capital gain.

To work on the business, she also needs to give up a job that pays $$70,000.$

Based on the information provided in this question, the total $($opportunity$)$ cost of starting the business for Stacey is: