From 790f8a4fdfe552f815ab89f09138bc935dd7854b Mon Sep 17 00:00:00 2001
From: Mateus Konageski <mateus@konageski.com.br>
Date: Mon, 26 Sep 2016 13:03:26 -0300
Subject: [PATCH] Allow ui-negative-number in ui-percentage-mask

In percentage mask, analise the tag ui-negative-number e correct value
and mask
---
 src/global/percentage/percentage.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/global/percentage/percentage.js b/src/global/percentage/percentage.js
index ba6a8409..659c17ba 100644
--- a/src/global/percentage/percentage.js
+++ b/src/global/percentage/percentage.js
@@ -77,9 +77,7 @@ function PercentageMaskDirective($locale, $parse, PreFormatters, NumberMasks) {
 				var actualNumber = parseFloat(modelMask.apply(valueToFormat));
 				
 				if (angular.isDefined(attrs.uiNegativeNumber)) {
-					var isNegative = (value[0] === '-');
-
-					isNegative = (value.slice(-1) === '-') ? !isNegative : isNegative;
+					var isNegative = (value.slice(-1) === '-') ? !(value[0] === '-') : (value[0] === '-');
 					if (isNegative) {
 						actualNumber *= -1;
 						formatedValue = '-' + formatedValue;