diff --git a/public/include/classes/statistics.class.php b/public/include/classes/statistics.class.php
index 31d64fba..e3fb62e9 100644
--- a/public/include/classes/statistics.class.php
+++ b/public/include/classes/statistics.class.php
@@ -64,7 +64,8 @@ class Statistics {
       SELECT
         b.*,
         a.username AS finder,
-        a.is_anonymous AS is_anonymous
+        a.is_anonymous AS is_anonymous,
+        ROUND((difficulty * 65535) / POW(2, (" . $this->config['difficulty'] . " -16)), 0) AS estshares
       FROM " . $this->block->getTableName() . " AS b
       LEFT JOIN " . $this->user->getTableName() . " AS a
       ON b.account_id = a.id
@@ -105,13 +106,13 @@ class Statistics {
       SELECT
       (
         (
-          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536/600/1000), 0) AS hashrate
+          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536 / 600 / 1000), 0) AS hashrate
           FROM " . $this->share->getTableName() . "
-          WHERE time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+          WHERE time > DATE_SUB(now(), INTERVAL 600 SECOND)
         ) + (
-          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536/600/1000), 0) AS hashrate
+          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536 / 600 / 1000), 0) AS hashrate
           FROM " . $this->share->getArchiveTableName() . "
-          WHERE time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+          WHERE time > DATE_SUB(now(), INTERVAL 600 SECOND)
         )
       ) AS hashrate
       FROM DUAL");
@@ -130,7 +131,7 @@ class Statistics {
     $this->debug->append("STA " . __METHOD__, 4);
     if ($data = $this->memcache->get(__FUNCTION__)) return $data;
     $stmt = $this->mysqli->prepare("
-      SELECT ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) / 600, 2) AS sharerate
+      SELECT ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) / POW(2, (" . $this->config['difficulty'] . " - 16)) / 600, 2) AS sharerate
       FROM " . $this->share->getTableName() . "
       WHERE time > DATE_SUB(now(), INTERVAL 10 MINUTE)");
     if ($this->checkStmt($stmt) && $stmt->execute() && $result = $stmt->get_result() ) return $this->memcache->setCache(__FUNCTION__, $result->fetch_object()->sharerate);
@@ -149,10 +150,10 @@ class Statistics {
     if ($this->getGetCache() && $data = $this->memcache->get(__FUNCTION__)) return $data;
     $stmt = $this->mysqli->prepare("
       SELECT
-        IFNULL(SUM(IF(our_result='Y', IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty), 0)), 0) AS valid,
-        IFNULL(SUM(IF(our_result='N', IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty), 0)), 0) AS invalid
+        ROUND(IFNULL(SUM(IF(our_result='Y', IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS valid,
+        ROUND(IFNULL(SUM(IF(our_result='N', IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS invalid
       FROM " . $this->share->getTableName() . "
-      WHERE UNIX_TIMESTAMP(time) >IFNULL((SELECT MAX(time) FROM " . $this->block->getTableName() . "),0)");
+      WHERE UNIX_TIMESTAMP(time) > IFNULL((SELECT MAX(time) FROM " . $this->block->getTableName() . "), 0)");
     if ( $this->checkStmt($stmt) && $stmt->execute() && $result = $stmt->get_result() )
       return $this->memcache->setCache(__FUNCTION__, $result->fetch_assoc());
     // Catchall
@@ -171,8 +172,8 @@ class Statistics {
     if ($this->getGetCache() && $data = $this->memcache->get(__FUNCTION__)) return $data;
     $stmt = $this->mysqli->prepare("
       SELECT
-        IFNULL(SUM(IF(our_result='Y', IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) AS valid,
-        IFNULL(SUM(IF(our_result='N', IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) AS invalid,
+        ROUND(IFNULL(SUM(IF(our_result='Y', IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS valid,
+        ROUND(IFNULL(SUM(IF(our_result='N', IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS invalid,
         u.id AS id,
         u.username AS username
       FROM " . $this->share->getTableName() . " AS s,
@@ -197,8 +198,8 @@ class Statistics {
     if ($this->getGetCache() && $data = $this->memcache->get(__FUNCTION__ . $account_id)) return $data;
     $stmt = $this->mysqli->prepare("
       SELECT
-        IFNULL(SUM(IF(our_result='Y', IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) AS valid,
-        IFNULL(SUM(IF(our_result='N', IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) AS invalid
+        ROUND(IFNULL(SUM(IF(our_result='Y', IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS valid,
+        ROUND(IFNULL(SUM(IF(our_result='N', IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty), 0)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS invalid
       FROM " . $this->share->getTableName() . " AS s,
            " . $this->user->getTableName() . " AS u
       WHERE
@@ -228,7 +229,7 @@ class Statistics {
         a.username AS username,
         a.donate_percent AS donate_percent,
         a.email AS email,
-        IFNULL(SUM(IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty)), 0) AS shares
+        IFNULL(SUM(IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty)), 0) AS shares
       FROM " . $this->user->getTableName() . " AS a
       LEFT JOIN " . $this->share->getTableName() . " AS s
       ON a.username = SUBSTRING_INDEX( s.username, '.', 1 )
@@ -252,18 +253,18 @@ class Statistics {
     $stmt = $this->mysqli->prepare("
       SELECT
         (
-          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536/600/1000), 0) AS hashrate
+          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536 / 600 / 1000), 0) AS hashrate
           FROM " . $this->share->getTableName() . " AS s,
                " . $this->user->getTableName() . " AS u
           WHERE u.username = SUBSTRING_INDEX( s.username, '.', 1 )
-            AND s.time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+            AND s.time > DATE_SUB(now(), INTERVAL 600 SECOND)
             AND u.id = ?
         ) + (
-          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536/600/1000), 0) AS hashrate
+          SELECT IFNULL(ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536 / 600 / 1000), 0) AS hashrate
           FROM " . $this->share->getArchiveTableName() . " AS s,
                " . $this->user->getTableName() . " AS u
           WHERE u.username = SUBSTRING_INDEX( s.username, '.', 1 )
-            AND s.time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+            AND s.time > DATE_SUB(now(), INTERVAL 600 SECOND)
             AND u.id = ?
         ) AS hashrate
       FROM DUAL");
@@ -283,11 +284,11 @@ class Statistics {
     $this->debug->append("STA " . __METHOD__, 4);
     if ($data = $this->memcache->get(__FUNCTION__ . $account_id)) return $data;
     $stmt = $this->mysqli->prepare("
-      SELECT IFNULL(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)), 0)/600 AS sharerate
+      SELECT COUNT(s.id) / 600 AS sharerate
       FROM " . $this->share->getTableName() . " AS s,
            " . $this->user->getTableName() . " AS u
       WHERE u.username = SUBSTRING_INDEX( s.username, '.', 1 )
-        AND s.time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+        AND s.time > DATE_SUB(now(), INTERVAL 600 SECOND)
         AND u.id = ?");
     if ($this->checkStmt($stmt) && $stmt->bind_param("i", $account_id) && $stmt->execute() && $result = $stmt->get_result() )
       return $this->memcache->setCache(__FUNCTION__ . $account_id, $result->fetch_object()->sharerate);
@@ -305,11 +306,11 @@ class Statistics {
     $this->debug->append("STA " . __METHOD__, 4);
     if ($data = $this->memcache->get(__FUNCTION__ . $worker_id)) return $data;
     $stmt = $this->mysqli->prepare("
-      SELECT IFNULL(ROUND(SUM(IF(difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536/600/1000), 0) AS hashrate
+      SELECT IFNULL(ROUND(SUM(IF(difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), difficulty)) * 65536 / 600 / 1000), 0) AS hashrate
       FROM " . $this->share->getTableName() . " AS s,
            " . $this->user->getTableName() . " AS u
       WHERE u.username = SUBSTRING_INDEX( s.username, '.', 1 )
-        AND s.time > DATE_SUB(now(), INTERVAL 10 MINUTE)
+        AND s.time > DATE_SUB(now(), INTERVAL 600 SECOND)
         AND u.id = ?");
     if ($this->checkStmt($stmt) && $stmt->bind_param("i", $account_id) && $stmt->execute() && $result = $stmt->get_result() )
       return $this->memcache->setCache(__FUNCTION__ . $worker_id, $result->fetch_object()->hashrate);
@@ -333,7 +334,7 @@ class Statistics {
         SELECT
           a.donate_percent AS donate_percent,
           a.is_anonymous AS is_anonymous,
-          IFNULL(SUM(IF(s.difficulty=0, pow(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty)), 0) AS shares,
+          ROUND(IFNULL(SUM(IF(s.difficulty=0, POW(2, (" . $this->config['difficulty'] . " - 16)), s.difficulty)), 0) / POW(2, (" . $this->config['difficulty'] . " - 16)), 0) AS shares,
           SUBSTRING_INDEX( s.username, '.', 1 ) AS account
         FROM " . $this->share->getTableName() . " AS s
         LEFT JOIN " . $this->user->getTableName() . " AS a