diff --git a/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java b/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
index 803b9e3..3b410b3 100644
--- a/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
+++ b/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
@@ -17,9 +17,9 @@ import cn.citycraft.PluginHelper.config.FileConfig;
 import mkremins.fanciful.FancyMessage;
 
 public class MsgUtil {
-	private static QuickShop plugin;
 	private static FileConfig messages;
 	private static HashMap<String, LinkedList<String>> player_messages = new HashMap<String, LinkedList<String>>();
+	private static QuickShop plugin;
 
 	/**
 	 * Deletes any messages that are older than a week in the database, to save
@@ -141,7 +141,7 @@ public class MsgUtil {
 			final double tax = plugin.getConfig().getDouble("tax");
 			final double total = amount * shop.getPrice();
 			if (tax != 0) {
-				if (!p.getUniqueId().equals(shop.getOwner())) {
+				if (!p.getName().equals(shop.getOwner())) {
 					p.sendMessage(ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.sell-tax", "" + Util.format((tax * total))));
 				} else {
 					p.sendMessage(ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.sell-tax-self"));
diff --git a/src/main/java/org/maxgamer/QuickShop/Util/Util.java b/src/main/java/org/maxgamer/QuickShop/Util/Util.java
index bc701ac..b7ee41a 100644
--- a/src/main/java/org/maxgamer/QuickShop/Util/Util.java
+++ b/src/main/java/org/maxgamer/QuickShop/Util/Util.java
@@ -1,6 +1,5 @@
 package org.maxgamer.QuickShop.Util;
 
-import java.text.DecimalFormat;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
@@ -26,11 +25,11 @@ import org.maxgamer.QuickShop.Config.ItemConfig;
 
 @SuppressWarnings("deprecation")
 public class Util {
-	private static HashSet<Material> tools = new HashSet<Material>();
 	private static HashSet<Material> blacklist = new HashSet<Material>();
-	private static HashSet<Material> shoppables = new HashSet<Material>();
-	private static HashSet<Material> transparent = new HashSet<Material>();
 	private static QuickShop plugin;
+	private static HashSet<Material> shoppables = new HashSet<Material>();
+	private static HashSet<Material> tools = new HashSet<Material>();
+	private static HashSet<Material> transparent = new HashSet<Material>();
 
 	public static void addTransparentBlock(final Material m) {
 		if (transparent.add(m) == false) {
@@ -228,8 +227,7 @@ public class Util {
 	public static String getToolPercentage(final ItemStack item) {
 		final double dura = item.getDurability();
 		final double max = item.getType().getMaxDurability();
-		final DecimalFormat formatter = new DecimalFormat("0");
-		return dura + "/" + max + "(" + formatter.format((1 - dura / max) * 100.0) + ")";
+		return String.format("%.2f(%s/%s)", (1 - dura / max) * 100.0, dura, max);
 	}
 
 	public static void initialize() {