diff --git a/Hledger/Interest.hs b/Hledger/Interest.hs
--- a/Hledger/Interest.hs
+++ b/Hledger/Interest.hs
@@ -102,4 +102,4 @@
   return t
 
 showPercent :: Decimal -> String
-showPercent r = shows r "%"
+showPercent r = shows (r * 100) "%"
diff --git a/hledger-interest.cabal b/hledger-interest.cabal
--- a/hledger-interest.cabal
+++ b/hledger-interest.cabal
@@ -1,5 +1,5 @@
 Name:                   hledger-interest
-Version:                1.5
+Version:                1.5.1
 Synopsis:               computes interest for a given account
 License:                BSD3
 License-file:           LICENSE
@@ -11,6 +11,7 @@
 Cabal-version:          >= 1.6
 Tested-with:            GHC > 7.10 && < 8.1
 Data-files:             README.md
+Stability:              stable
 
 Description:
  hledger-interest is a small command-line utility based on Simon