diff --git a/functions/format_percentage.sql b/functions/format_percentage.sql
new file mode 100644
index 0000000..e1d0ed7
--- /dev/null
+++ b/functions/format_percentage.sql
@@ -0,0 +1,86 @@
+-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; version 2 of the License.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+DROP FUNCTION IF EXISTS format_percentage;
+
+DELIMITER $$
+
+CREATE DEFINER='root'@'localhost' FUNCTION format_percentage (
+        -- We feed in and return TEXT here, as aggregates of
+        -- picoseconds can return numbers larger than BIGINT UNSIGNED
+        percentage TEXT
+    )
+    RETURNS TEXT CHARSET UTF8
+    COMMENT '
+             Description
+             -----------
+
+             Takes a raw value between 0 and 1, and converts it to a human 
+             readable percentage formatted to two decimal places.
+             
+             Parameters
+             -----------
+
+             percentage (TEXT): 
+               The raw percentage to format.
+
+             Returns
+             -----------
+
+             TEXT
+
+             Example
+             -----------
+
+             mysql> select format_percentage(0.99921);
+             +----------------------------+
+             | format_percentage(0.99921) |
+             +----------------------------+
+             | 99.92 %                    |
+             +----------------------------+
+             1 row in set (0.01 sec)
+
+             mysql> select format_percentage(0.012);
+             +--------------------------+
+             | format_percentage(0.012) |
+             +--------------------------+
+             | 1.20 %                   |
+             +--------------------------+
+             1 row in set (0.00 sec)
+
+             mysql> select format_percentage(0);
+             +----------------------+
+             | format_percentage(0) |
+             +----------------------+
+             | 0.00 %               |
+             +----------------------+
+             1 row in set (0.00 sec)
+             
+             mysql> select format_percentage(1);
+             +----------------------+
+             | format_percentage(1) |
+             +----------------------+
+             | 100.00 %             |
+             +----------------------+
+             1 row in set (0.00 sec)
+                         '
+    SQL SECURITY INVOKER
+    DETERMINISTIC
+    NO SQL
+    BEGIN
+     RETURN CONCAT(ROUND(100 * (percentage), 2), ' %');
+  END$$
+
+DELIMITER ;
diff --git a/mysql-test/suite/sysschema/r/all_sys_objects_exist.result b/mysql-test/suite/sysschema/r/all_sys_objects_exist.result
index 370ce51..5129c2c 100644
--- a/mysql-test/suite/sysschema/r/all_sys_objects_exist.result
+++ b/mysql-test/suite/sysschema/r/all_sys_objects_exist.result
@@ -108,6 +108,7 @@ extract_schema_from_file_name	FUNCTION
 extract_table_from_file_name	FUNCTION
 format_bytes	FUNCTION
 format_path	FUNCTION
+format_percentage	FUNCTION
 format_statement	FUNCTION
 format_time	FUNCTION
 list_add	FUNCTION
diff --git a/mysql-test/suite/sysschema/r/fn_format_percentage.result b/mysql-test/suite/sysschema/r/fn_format_percentage.result
new file mode 100644
index 0000000..51409dc
--- /dev/null
+++ b/mysql-test/suite/sysschema/r/fn_format_percentage.result
@@ -0,0 +1,21 @@
+SELECT sys.format_percentage(NULL);
+sys.format_percentage(NULL)
+NULL
+select sys.format_percentage(0.99921);
+sys.format_percentage(0.99921)
+99.92 %
+select sys.format_percentage(0.012);
+sys.format_percentage(0.012)
+1.20 %
+select sys.format_percentage(0);
+sys.format_percentage(0)
+0.00 %
+select sys.format_percentage(1);
+sys.format_percentage(1)
+100.00 %
+select sys.format_percentage(1.12);
+sys.format_percentage(1.12)
+112.00 %
+select sys.format_percentage(-0.2);
+sys.format_percentage(-0.2)
+-20.00 %
diff --git a/mysql-test/suite/sysschema/t/fn_format_percentage.test b/mysql-test/suite/sysschema/t/fn_format_percentage.test
new file mode 100644
index 0000000..36455d4
--- /dev/null
+++ b/mysql-test/suite/sysschema/t/fn_format_percentage.test
@@ -0,0 +1,19 @@
+-- source include/not_embedded.inc
+# Tests for sys schema
+# Verify the sys.format_percentage() function perfoms as expected
+
+# Passing NULL/nothing should return NULL
+SELECT sys.format_percentage(NULL);
+
+# Format valid "normal" percentages
+select sys.format_percentage(0.99921);
+select sys.format_percentage(0.012);
+select sys.format_percentage(0);
+select sys.format_percentage(1);
+
+# Relative percentages can be out of 0-1 range.
+# For example:
+# 112% faster or -20% regression
+
+select sys.format_percentage(1.12);
+select sys.format_percentage(-0.2);
diff --git a/views/p_s/processlist_57.sql b/views/p_s/processlist_57.sql
index 4ac5ac4..b73313f 100644
--- a/views/p_s/processlist_57.sql
+++ b/views/p_s/processlist_57.sql
@@ -32,7 +32,7 @@
 --                   time: 18
 --      current_statement: alter table t1 add column g int
 --      statement_latency: 18.45 s
---               progress: 98.84
+--               progress: 98.84 %
 --           lock_latency: 265.43 ms
 --          rows_examined: 0
 --              rows_sent: 0
@@ -101,7 +101,7 @@ SELECT pps.thread_id AS thd_id,
           sys.format_time(esc.timer_wait),
           NULL) AS statement_latency,
        IF(esc.end_event_id IS NULL,
-          ROUND(100 * (estc.work_completed / estc.work_estimated), 2),
+          format_percentage(estc.work_completed / estc.work_estimated),
           NULL) AS progress,
        sys.format_time(esc.lock_time) AS lock_latency,
        esc.rows_examined AS rows_examined,