From 9663629e344ad19f5eb550f6d87bd27048f3704e Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Thu, 20 Aug 2020 12:29:50 +0200
Subject: [PATCH] match coldcard fee percent calc

---
 .../com/sparrowwallet/drongo/wallet/WalletTransaction.java  | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/sparrowwallet/drongo/wallet/WalletTransaction.java b/src/main/java/com/sparrowwallet/drongo/wallet/WalletTransaction.java
index 1be8a4e..d55bd82 100644
--- a/src/main/java/com/sparrowwallet/drongo/wallet/WalletTransaction.java
+++ b/src/main/java/com/sparrowwallet/drongo/wallet/WalletTransaction.java
@@ -86,8 +86,12 @@ public class WalletTransaction {
         return selectedUtxos.keySet().stream().mapToLong(BlockTransactionHashIndex::getValue).sum();
     }
 
+    /**
+     * Fee percentage matches the Coldcard implementation of total fee as a percentage of total value out
+     * @return the fee percentage
+     */
     public double getFeePercentage() {
-        return (double)getFee() / getTotal();
+        return (double)getFee() / (getTotal() - getFee());
     }
 
     public boolean isCoinControlUsed() {