Round shop balance and price per item.

src/main/java/com/alttd/playershops/shop/PlayerShop.java

@@ -65,7 +65,7 @@ public class PlayerShop {
         playerShop.server = server;
         playerShop.price = price;
         playerShop.amount = amount;
-        playerShop.balance = balance;
+        playerShop.balance = EconomyUtils.round(balance);
         playerShop.itemStack = item;
         playerShop.lastTransaction = lastTransaction;
 
@@ -193,7 +193,7 @@ public class PlayerShop {
     }
 
     public double getPricePerItem() {
-        return this.getPrice() / this.getAmount();
+        return EconomyUtils.round(this.getPrice() / this.getAmount());
     }
 
     public boolean removeBalance(double amount) {

src/main/java/com/alttd/playershops/utils/EconomyUtils.java

@@ -5,6 +5,9 @@ import com.alttd.playershops.shop.PlayerShop;
 import net.milkbowl.vault.economy.EconomyResponse;
 import org.bukkit.entity.Player;
 
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
 // TODO document
 public class EconomyUtils {
 
@@ -55,4 +58,11 @@ public class EconomyUtils {
         // if we ever need to limit the maximum balance a shop can have this is the place
         return true;
     }
+
+    public static double round(double value) {
+        BigDecimal bd = BigDecimal.valueOf(value);
+        bd = bd.setScale(2, RoundingMode.HALF_UP);
+        return bd.doubleValue();
+    }
+
 }