diff --git a/Auto-Tune/dependency-reduced-pom.xml b/Auto-Tune/dependency-reduced-pom.xml
index ea06b8a..06237cb 100644
--- a/Auto-Tune/dependency-reduced-pom.xml
+++ b/Auto-Tune/dependency-reduced-pom.xml
@@ -4,7 +4,7 @@
   <groupId>unprotesting.com.github</groupId>
   <artifactId>Auto-Tune</artifactId>
   <name>Auto-Tune</name>
-  <version>0.12.2</version>
+  <version>0.12.3</version>
   <description>The automatic pricing plugin for minecraft</description>
   <url>https://github.com/Unprotesting/Auto-Tune</url>
   <issueManagement>
diff --git a/Auto-Tune/pom.xml b/Auto-Tune/pom.xml
index 2bb4f5c..62b21f0 100644
--- a/Auto-Tune/pom.xml
+++ b/Auto-Tune/pom.xml
@@ -9,7 +9,7 @@
   <!-- Project information -->
   <groupId>unprotesting.com.github</groupId>
   <artifactId>Auto-Tune</artifactId>
-  <version>0.12.2</version>
+  <version>0.12.3</version>
  <!-- Info -->
   <name>Auto-Tune</name>
   <url>https://github.com/Unprotesting/Auto-Tune</url>
diff --git a/Auto-Tune/src/resources/config.yml b/Auto-Tune/src/resources/config.yml
index a1ed9cd..8877683 100644
--- a/Auto-Tune/src/resources/config.yml
+++ b/Auto-Tune/src/resources/config.yml
@@ -99,10 +99,10 @@ currency-symbol: '$'
 sell-price-difference-variation-enabled: true
 
 ##  Starting percententage sell price difference for sell price variation
-sell-price-difference-variation-start: 22.5
+sell-price-difference-variation-start: 25
 
-##  Time in minutes until sell price reaches sell-price-difference set in pricing model settings (default 7 days)
-sell-price-variation-time-period: 10080
+##  Time in minutes until sell price reaches sell-price-difference set in pricing model settings (default 4 weeks)
+sell-price-variation-time-period: 43200
 
 ##  Time in minutes that the sell-price-difference updates
 ##  Info: Must be a factor of sell-price-variation-time-period or it won't work!
@@ -128,11 +128,11 @@ static-inflation-value: 0.1
 
 ##  Intrest rate per interest-rate-update-period
 ##  Info: This is the increase in the current debt payment per-time period
-interest-rate: 0.005
+interest-rate: 0.0075
 
 ##  Intrest rate for compound-intrest loans
 ##  Info: Compound interest loans grow faster so should have a lower initial interest rate
-compound-interest-rate: 0.0025
+compound-interest-rate: 0.005
 
 ##  Time period in ticks between updates of the interest rate for users loans
 interest-rate-update-period: 1200
diff --git a/Auto-Tune/src/resources/enchantments.yml b/Auto-Tune/src/resources/enchantments.yml
index 0bb28e0..bd5793b 100644
--- a/Auto-Tune/src/resources/enchantments.yml
+++ b/Auto-Tune/src/resources/enchantments.yml
@@ -54,109 +54,109 @@ enchantments:
     ##  Increases the rate at which you mine/dig
   DURABILITY:
     price: 850.00
-    ratio: 0.85
+    ratio: 0.425
     ##  Decreases the rate at which a tool looses durability
   FIRE_ASPECT:
     price: 1000.00
-    ratio: 0.9
+    ratio: 0.45
     ##  When attacking a target, has a chance to set them on fire
   FROST_WALKER:
     price: 1100.00
-    ratio: 1.0
+    ratio: 0.5
     ##  Freezes any still water adjacent to ice / frost which player is walking on
   IMPALING:
     price: 650.00
-    ratio: 0.8
+    ratio: 0.4
     ##  Deals more damage to mobs that live in the ocean
   KNOCKBACK:
     price: 975.00
-    ratio: 0.8
+    ratio: 0.4
     ##  All damage to other targets will knock them back when hit
   LOOT_BONUS_BLOCKS:
     price: 1250.00
-    ratio: 1.45
+    ratio: 0.725
     ##  Provides a chance of gaining extra loot when destroying blocks
   LOOT_BONUS_MOBS:
     price: 1200.00
-    ratio: 1.35
+    ratio: 0.65
     ##  Provides a chance of gaining extra loot when killing monsters
   LOYALTY:
     price: 1100.00
-    ratio: 0.8
+    ratio: 0.4
     ##  Causes a thrown trident to return to the player who threw it
   LUCK:
     price: 750.00
-    ratio: 1.2
+    ratio: 0.6
     ##  Decreases odds of catching worthless junk
   LURE:
     price: 550.00
-    ratio: 0.5
+    ratio: 0.25
     ##  Increases rate of fish biting your hook
   MENDING:
     price: 4000.00
-    ratio: 2.25
+    ratio: 1.1
     ##  Allows mending the item using experience orbs
   MULTISHOT:
     price: 800.00
-    ratio: 0.8 
+    ratio: 0.4
     ##  Shoot multiple arrows from crossbows
   OXYGEN:
     price: 600.00
-    ratio: 0.7
+    ratio: 0.35
     ##  Decreases the rate of air loss whilst underwater
   PIERCING:
     price: 750.00
-    ratio: 0.8
+    ratio: 0.4
     ##  Crossbow projectiles pierce entities
   PROTECTION_ENVIRONMENTAL:
     price: 900.00
-    ratio: 0.8
+    ratio: 0.4
     ##  Provides protection against environmental damage
   PROTECTION_EXPLOSIONS:
     price: 950.00
-    ratio: 0.85
+    ratio: 0.425
     ##  Provides protection against explosive damage
   PROTECTION_FALL:
     price: 950.00
-    ratio: 0.85
+    ratio: 0.425
     ##  Provides protection against fall damage
   PROTECTION_FIRE:
     price: 950.00
-    ratio: 0.8
+    ratio: 0.4
     ##  Provides protection against fire damage
   PROTECTION_PROJECTILE:
     price: 950.00
-    ratio: 0.85
+    ratio: 0.425
     ##  Provides protection against projectile damage
   QUICK_CHARGE:
     price: 800.00
-    ratio: 0.85
+    ratio: 0.425
     ##  Charges crossbows quickly
   RIPTIDE:
     price: 1050.00
-    ratio: 0.8
+    ratio: 0.4
     ##  When it is rainy, launches the player in the direction their trident is thrown
   SILK_TOUCH:
     price: 1300.00
-    ratio: 1.2
+    ratio: 0.6
     ##  Allows blocks to drop themselves instead of fragments (for example, stone instead of cobblestone)
   SOUL_SPEED:
     price: 1450.00
-    ratio: 1.5
+    ratio: 0.75
     ##  Walk quicker on soul blocks
   SWEEPING_EDGE:
     price: 1900.00
-    ratio: 0.9
+    ratio: 0.4
     ##  Increases damage against targets when using a sweep attack
   THORNS:
     price: 1600.00
-    ratio: 1.25
+    ratio: 0.6
     ##  Damages the attacker
   VANISHING_CURSE:
     price: 50.00
-    ratio: 0.3
+    ratio: 0.15
     ##  Item disappears instead of dropping
   WATER_WORKER:
     price: 800.00
-    ratio: 0.85
+    ratio: 0.45
     ##  Increases the speed at which a player may mine underwater
\ No newline at end of file
diff --git a/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneBuyCommand.java b/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneBuyCommand.java
index d30bfa8..90a744f 100644
--- a/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneBuyCommand.java
+++ b/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneBuyCommand.java
@@ -84,7 +84,13 @@ public boolean onCommand(CommandSender sender, Command command, String label, St
                                 ex.printStackTrace();
                                 return true;
                             }
-                            double price = setting.price + Main.map.get(is.getType().toString()).get(Main.map.get(is.getType().toString()).size()-1)[0]*setting.ratio;
+                            double price = setting.price;
+                            try{
+                                price = setting.price + AutoTuneGUIShopUserCommand.getItemPrice(is.getType().toString(), false)*setting.ratio;
+                            }
+                            catch(NullPointerException e){
+                                price = setting.price;
+                            }
                             Main.getEconomy().withdrawPlayer(player, Double.parseDouble(AutoTuneGUIShopUserCommand.df1.format(price)));
                             player.sendMessage(ChatColor.GOLD + "Purchased " + setting.name + " for "
                              + ChatColor.GREEN + Config.getCurrencySymbol() + AutoTuneGUIShopUserCommand.df2.format(price));
diff --git a/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneGUIShopUserCommand.java b/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneGUIShopUserCommand.java
index 5573da0..3ad0cc0 100644
--- a/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneGUIShopUserCommand.java
+++ b/Auto-Tune/src/unprotesting/com/github/Commands/AutoTuneGUIShopUserCommand.java
@@ -141,7 +141,7 @@ public static void loadGUIMAIN(Player player, Section sec, boolean twoArgs, bool
 		}
 		Gui main = new Gui((lines + 2), Config.getMenuTitle());
 		Integer paneSize = (lines + 1) * 7;
-		Integer paneAmount = (int) Math.ceil(itemAmount / paneSize) + 1;
+		Integer paneAmount = (int) Math.ceil((itemAmount+7) / paneSize) + 1;
 		PaginatedPane pPane = new PaginatedPane(0, 0, 9, (lines + 2));
 		OutlinePane[] shopPanes = new OutlinePane[paneAmount];
 		for (int i = 0; i < shopPanes.length; i++) {
@@ -459,26 +459,38 @@ public double getSellPriceDifference(String item) {
 	}
 
 	public static Double getItemPrice(String item, boolean sell) {
+		Double output = 0.0;
 		if (!sell) {
-			Double output = Main.getItemPrices().get(item).price;
-			if (output != null){
+			try{
+				output = Main.getItemPrices().get(item).price;
 				return output;
 			}
-			else{
+			catch(NullPointerException e){
 				ConcurrentHashMap<Integer, Double[]> map = Main.map.get(item);
-				output = map.get(map.size()-1)[0];
-				return output;
+				try{
+					output = map.get(map.size()-1)[0];
+					return output;
+				}
+				catch(NullPointerException e2){
+					return null;
+				}
+				
 			}
 		} else {
-			Double output = Main.getItemPrices().get(item).sellPrice;
-			if (output != null){
+			try{
+				output = Main.getItemPrices().get(item).sellPrice;
 				return output;
 			}
-			else{
+			catch(NullPointerException e){
 				ConcurrentHashMap<Integer, Double[]> map = Main.map.get(item);
 				output = map.get(map.size()-1)[0];
-				output = output - output*0.01*getSellDifference(item);
-				return output;
+				try{
+					output = output - output*0.01*getSellDifference(item);
+					return output;
+				}
+				catch(NullPointerException e2){
+					return null;
+				}
 			}
 		}
 	}
diff --git a/Auto-Tune/src/unprotesting/com/github/util/EnchantmentAlgorithm.java b/Auto-Tune/src/unprotesting/com/github/util/EnchantmentAlgorithm.java
index b1f2e75..ba4794d 100644
--- a/Auto-Tune/src/unprotesting/com/github/util/EnchantmentAlgorithm.java
+++ b/Auto-Tune/src/unprotesting/com/github/util/EnchantmentAlgorithm.java
@@ -8,6 +8,7 @@
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import unprotesting.com.github.Main;
+import unprotesting.com.github.Commands.AutoTuneGUIShopUserCommand;
 
 public class EnchantmentAlgorithm {
 
@@ -39,10 +40,12 @@ public static void loadEnchantmentSettings() {
     public static double calculatePriceWithEnch(ItemStack is, boolean buy) {
         ItemMeta iMeta = is.getItemMeta();
         Map<Enchantment, Integer> enchants = iMeta.getEnchants();
-        ConcurrentHashMap<Integer, Double[]> inMap = Main.map.get(is.getType().toString());
         double price = 0.0;
-        if (inMap != null) {
-            price = inMap.get(inMap.size() - 1)[0];
+        try{
+            price = AutoTuneGUIShopUserCommand.getItemPrice(is.getType().toString(), !buy);
+        }
+        catch(NullPointerException e){
+            price = 0.0;
         }
         double cachePrice = 0;
         for (Map.Entry<Enchantment, Integer> ench : enchants.entrySet()) {