From ecbd18087b267ba61b74477c973281b740edaf30 Mon Sep 17 00:00:00 2001
From: softsimon <softsimon@users.noreply.github.com>
Date: Wed, 14 Jul 2021 22:42:48 +0300
Subject: [PATCH] Effective fee could go below 0 due to rounding error. (#623)

fixes #606
---
 backend/src/api/common.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/src/api/common.ts b/backend/src/api/common.ts
index e1021c234..a560bfdfe 100644
--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@@ -105,7 +105,7 @@ export class Common {
       totalFees += tx.bestDescendant.fee;
     }
 
-    tx.effectiveFeePerVsize = totalFees / (totalWeight / 4);
+    tx.effectiveFeePerVsize = Math.max(1, totalFees / (totalWeight / 4));
     tx.cpfpChecked = true;
 
     return {