diff --git a/src/MakePhar/PharBuilder.php b/src/MakePhar/PharBuilder.php
index 175b0c9..c342f0e 100644
--- a/src/MakePhar/PharBuilder.php
+++ b/src/MakePhar/PharBuilder.php
@@ -82,7 +82,7 @@ class PharBuilder
         $str_tot = $formatSize($size_tot);
         if (!$verbatim) {
             $str_min = $formatSize($size_min);
-            $str_rat = sprintf("%.2f%%", 100/$str_tot*$str_min);
+            $str_rat = sprintf("%.2f%%", 100/$size_tot*$size_min);
             log_debug("Size: %s, Minified: %s (%s)", $str_tot, $str_min, $str_rat);
         } else {
             log_debug("Size: %s", $str_tot);