From 7cb0cf8dc21612761b9e58de600447c12ef340dd Mon Sep 17 00:00:00 2001
From: Nazarn96 <nazarn96@gmail.com>
Date: Wed, 27 Mar 2019 14:41:42 +0200
Subject: [PATCH 1/2] fix issue-21960

---
 app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php b/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
index e61a886a41d6f..a5e9f9ef0a331 100644
--- a/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
+++ b/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
@@ -115,7 +115,7 @@ protected function _getItemsData()
             }
             $label = $this->renderRangeLabel(
                 empty($from) ? 0 : $from,
-                empty($to) ? 0 : $to
+                empty($to) ? $to : $to
             );
             $value = $from . '-' . $to;
 

From bbe71ef43062429cd3f235ad885cc3a996e7628d Mon Sep 17 00:00:00 2001
From: Nazarn96 <nazarn96@gmail.com>
Date: Fri, 29 Mar 2019 13:44:55 +0200
Subject: [PATCH 2/2] refactoring

---
 .../Magento/CatalogSearch/Model/Layer/Filter/Decimal.php | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php b/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
index a5e9f9ef0a331..e9fb1070fedd5 100644
--- a/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
+++ b/app/code/Magento/CatalogSearch/Model/Layer/Filter/Decimal.php
@@ -111,12 +111,9 @@ protected function _getItemsData()
                 $from = '';
             }
             if ($to == '*') {
-                $to = '';
+                $to = null;
             }
-            $label = $this->renderRangeLabel(
-                empty($from) ? 0 : $from,
-                empty($to) ? $to : $to
-            );
+            $label = $this->renderRangeLabel(empty($from) ? 0 : $from, $to);
             $value = $from . '-' . $to;
 
             $data[] = [
@@ -141,7 +138,7 @@ protected function _getItemsData()
     protected function renderRangeLabel($fromPrice, $toPrice)
     {
         $formattedFromPrice = $this->priceCurrency->format($fromPrice);
-        if ($toPrice === '') {
+        if ($toPrice === null) {
             return __('%1 and above', $formattedFromPrice);
         } else {
             if ($fromPrice != $toPrice) {