Sell Barns, Pastures, & Upgrades for IVs
You can click on the "Sell Barns" or "Sell Upgrades" buttons to sell your barns, pastures, and upgrades in exchange for investment vouchers. Barns and pastures will sell for different amounts depending on their size, how they were purchased, and what they originally cost. The resale value of your upgrade will vary depending on how many days of it are left.
(screenshots to illustrate.)