1 files changed, 6 insertions, 0 deletions
diff --git a/lib/overwrite.rb b/lib/overwrite.rb
index 2eb0b39..a27d685 100644
--- a/lib/overwrite.rb
+++ b/lib/overwrite.rb
@@ -11,6 +11,12 @@ class Object
   end
 end
 
+class Numeric
+  def percent_of(n)
+    self.to_f / n.to_f * 100.0
+  end
+end
+
 module Enumerable
   # @return [Array] only the duplicates of an enumerable
   def duplicates