diff --git a/docs/lib/analytics.md b/docs/lib/analytics.md
index 32f9bd6..d447705 100644
--- a/docs/lib/analytics.md
+++ b/docs/lib/analytics.md
@@ -6,7 +6,8 @@ Functions for statistics and analysis.
 
 ## anal-disk-usage
 
-Analyze disk usage. Prints the total disk space used by each sub-directory in any directory in ascending order.
+Analyze disk usage. Prints the disk space used by each sub-directory in any directory in ascending order.
+Also reports how many percent each sub-directory's size takes up in total size.
 
 **Usage**
 
diff --git a/lib/analytics.sh b/lib/analytics.sh
index c58404a..e87c466 100644
--- a/lib/analytics.sh
+++ b/lib/analytics.sh
@@ -10,9 +10,15 @@
 ## @param    $1  Dir to check
 ## @default      Current working dir
 ####################################
+# shellcheck disable=SC2312
 anal-disk-usage() {
     local dir="${1:-.}"
-    shift
-    # shellcheck disable=SC2312
-    du "${dir}" -hd1 "${@}" 2>/dev/null | sort -h
+    local total size dir
+
+    total=$(du --summarize --block-size=1 "${dir}" | cut -f1)
+
+    while IFS= read -r -d '' line; do
+        read -r size dir <<<"${line}"
+        printf "%3d%% %8s   %s\n" "$((size * 100 / total))" "$(numfmt --to=iec "${size}")" "${dir}"
+    done < <(du --null --block-size=1 -d1 "${dir}" 2>/dev/null | sort -nz)
 }