diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6f8fe72
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+CMakeCache.txt
+CMakeFiles/
+Makefile
+cmake_install.cmake
+install_manifest.txt
+screen-cpu-usage
+*.swp
diff --git a/README.rst b/README.rst
index 4cffd19..437ef15 100644
--- a/README.rst
+++ b/README.rst
@@ -19,12 +19,12 @@ The CPU usage monitor outputs a percent CPU usage over all processors that is
 updated every second.  It also displays a textual bar graph of the current
 percent usage where every '|' character represents 10% usage.  
 
-The memory monitor is updated every three seconds and displays the used and
-available memory.
+The memory monitor is updated every three seconds and displays the free of
+total memory.
 
 Example::
 
-  Mem:2885MB/7987MB  Cpu:[|||||     ]  51.2%
+  Mem:3130/15344MB 79.7%[f]  Cpu:[|||||     ]  51.2%
 
 
 
@@ -87,7 +87,7 @@ An example configuration::
 
 The example configuration will result in::
 
-  Host:flea   Mem:2961MB/7987MB  Cpu:[||        ]  25.6%  Load:0.64 0.35 0.28 Fri 09/11 12:56am
+  Host:flea   Mem:3130/15344MB 79.7%[f]  Cpu:[||        ]  25.6%  Load:0.64 0.35 0.28 Fri 09/11 12:56am
 
 
 
diff --git a/screen-mem-usage b/screen-mem-usage
index 2aa2b4a..7f95e0a 100755
--- a/screen-mem-usage
+++ b/screen-mem-usage
@@ -1,9 +1,11 @@
 #!/bin/sh
 
-total_mem=$(/usr/bin/free -m | /usr/bin/awk '$1 == "Mem:" { print $2 }')
+total_mem=$(/usr/bin/free -tm | /usr/bin/awk '$1 == "Mem:" { print $2 }')
 
 while(true); do
-  current_mem=$(/usr/bin/free -m | /usr/bin/awk '$1 == "-/+" { print $3 }')
-  echo "${current_mem}MB/${total_mem}MB"
+  free_mem=$(/usr/bin/free -tm | /usr/bin/awk '$1 == "Mem:" { print $4 }')
+  free_mem_pct=$(echo "scale=3; ${free_mem}/${total_mem}" | bc -l)
+  free_mem_pct=$(echo "scale=1; ${free_mem_pct}*100/1" | bc -l)
+  echo "${free_mem}/${total_mem}MB ${free_mem_pct}%[f]"
   sleep 3
 done