From b9cf3f9e3c35dae52441888a9df971c7f5518028 Mon Sep 17 00:00:00 2001
From: Mario Zechner <badlogicgames@gmail.com>
Date: Thu, 25 May 2023 07:03:21 +0200
Subject: [PATCH] Percentage change in price dom.

---
 site/utils.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/site/utils.js b/site/utils.js
index 3ef4838..08d9651 100644
--- a/site/utils.js
+++ b/site/utils.js
@@ -102,7 +102,12 @@ function itemToDOM(item) {
     let storeDom = dom("td", item.store);
     let nameDom = dom("td", itemToStoreLink(item));
     let unitDom = dom("td", item.unit ? item.unit : "");
-    let priceDomText = item.price + (item.priceHistory.length > 1 ? (item.priceHistory[0].price > item.priceHistory[1].price ? " 📈" : " 📉") + " (" + (item.priceHistory.length - 1) + ")" : "");
+    let increase = "";
+    if (item.priceHistory.length > 1) {
+        let percentageChange = Math.round((item.priceHistory[0].price - item.priceHistory[1].price) / item.priceHistory[1].price * 100);
+        increase = (percentageChange > 0 ? "+" + percentageChange : percentageChange) + "%";
+    }
+    let priceDomText = item.price + (item.priceHistory.length > 1 ? (item.priceHistory[0].price > item.priceHistory[1].price ? " 📈" : " 📉") + " " + increase + " (" + (item.priceHistory.length - 1) + ")" : "");
     let pricesText = "";
     for (let i = 0; i < item.priceHistory.length; i++) {
         const date = item.priceHistory[i].date;