From d7cec61e837fcba0fa6a9973c7b06521c2804d06 Mon Sep 17 00:00:00 2001
From: Simon Roberts <lyricnz@gmail.com>
Date: Wed, 20 Oct 2021 10:04:01 +1100
Subject: [PATCH] When hidePortfolioBalances scale the chart to the maximum
 price; avoids issue with resampling and using the last value

---
 cointop/chart.go | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/cointop/chart.go b/cointop/chart.go
index dcca3f4..98ff63c 100644
--- a/cointop/chart.go
+++ b/cointop/chart.go
@@ -315,10 +315,15 @@ func (ct *Cointop) PortfolioChart() error {
 
 		// Scale Portfolio Balances to hide value
 		if ct.State.hidePortfolioBalances {
-			var lastPrice = data[len(data)-1]
-			if lastPrice > 0.0 {
+			scalePrice := 0.0
+			for _, price := range data {
+				if price > scalePrice {
+					scalePrice = price
+				}
+			}
+			if scalePrice > 0.0 {
 				for i, price := range data {
-					data[i] = 100 * price / lastPrice
+					data[i] = 100 * price / scalePrice
 				}
 			}
 		}