diff --git a/README.md b/README.md
index f2671e7..268d4bb 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ An *instance store* provides temporary block-level storage for your instance.
 ### Spot instance
 
 - Interruptions are possible
-- %90 discount
+- 90% discount
 
 ### Dedicated host