Stardew Valley offers set Profit Margins of 100% (Normal), 75%, 50%, and 25%. If you have your Profit Margins set to 50%, an item worth 60 Gold will now be worth 30 Gold when sold. If you have your Profit Margins set to 25%, an item worth 60 Gold will now be worth 15 Gold, and so on.
While lowering the Profit Margin will also lower the expenses of seeds, other unlockable items such as the Stable and Inventory expansions will remain the same. It will take you longer to obtain these features as opposed to a normal 100% Profit Margin game. In most cases, save files with normal Profit Margins see growth in Year 2, but lower Profit Margins may take longer. You can only change your Profit Margin when you start a new save file. You’ll be unable to officially change it with an existing save file.
For mobile users, Stardew Valley is also available for iPhone in the App Store and for Android in the Google Play Store.
The lower your Profit Margin, the less you will earn when selling items.
Some aspects will remain unaffected, such as the unlocking of the sewer key.