From bded2edaf2cb3fbbc4a41516e2b5fb978bff004a Mon Sep 17 00:00:00 2001
From: gx578007 <researchgary@gmail.com>
Date: Tue, 18 Jul 2023 15:48:27 +0800
Subject: [PATCH] FIX: [grid2] fix upper pin

---
 pkg/strategy/grid2/grid.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkg/strategy/grid2/grid.go b/pkg/strategy/grid2/grid.go
index e5f9978c9..84e646733 100644
--- a/pkg/strategy/grid2/grid.go
+++ b/pkg/strategy/grid2/grid.go
@@ -52,7 +52,12 @@ func calculateArithmeticPins(lower, upper, spread, tickSize fixedpoint.Value) []
 	}
 
 	// this makes sure there is no error at the upper price
-	pins = append(pins, Pin(upper))
+	pp := math.Round(upper.Float64()*pow10*10.0) / 10.0
+	pp = math.Trunc(pp) / pow10
+
+	pps := strconv.FormatFloat(pp, 'f', prec, 64)
+	upperPrice := fixedpoint.MustNewFromString(pps)
+	pins = append(pins, Pin(upperPrice))
 
 	return pins
 }