diff --git a/AndroidCalculator/Base.lproj/Main.storyboard b/AndroidCalculator/Base.lproj/Main.storyboard
index c7d7d23..853b673 100644
--- a/AndroidCalculator/Base.lproj/Main.storyboard
+++ b/AndroidCalculator/Base.lproj/Main.storyboard
@@ -20,28 +20,6 @@
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <color key="backgroundColor" systemColor="systemGroupedBackgroundColor" red="0.94901960780000005" green="0.94901960780000005" blue="0.96862745100000003" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                             </view>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="caQ-65-jBq">
-                                <rect key="frame" x="104" y="556" width="80" height="80"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="52"/>
-                                <state key="normal" title=".">
-                                    <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
-                                </state>
-                                <connections>
-                                    <action selector="clickDotButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="n4O-i6-tej"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="jgo-wI-dJm">
-                                <rect key="frame" x="192" y="557" width="80" height="80"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="52"/>
-                                <state key="normal" title="=">
-                                    <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
-                                </state>
-                                <connections>
-                                    <action selector="clickEquationButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Wlj-nE-CFP"/>
-                                </connections>
-                            </button>
                             <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iKJ-gm-pgJ">
                                 <rect key="frame" x="16" y="557" width="80" height="80"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
@@ -152,21 +130,32 @@
                                     <action selector="clickNumberButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="5kj-8D-26R"/>
                                 </connections>
                             </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="K66-JV-tKt">
-                                <rect key="frame" x="16" y="205" width="80" height="80"/>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="caQ-65-jBq">
+                                <rect key="frame" x="104" y="556" width="80" height="80"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="38"/>
-                                <state key="normal" title="AC">
+                                <fontDescription key="fontDescription" type="system" pointSize="52"/>
+                                <state key="normal" title=".">
                                     <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
                                 </state>
                                 <connections>
-                                    <action selector="clickAllClearButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Ovk-lI-xeN"/>
+                                    <action selector="clickDotButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="n4O-i6-tej"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="jgo-wI-dJm">
+                                <rect key="frame" x="192" y="557" width="80" height="80"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="52"/>
+                                <state key="normal" title="=">
+                                    <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
+                                </state>
+                                <connections>
+                                    <action selector="clickEquationButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Wlj-nE-CFP"/>
                                 </connections>
                             </button>
                             <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="I4O-WX-Rsc">
-                                <rect key="frame" x="104" y="205" width="168" height="80"/>
+                                <rect key="frame" x="16" y="205" width="168" height="80"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="38"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="36"/>
                                 <state key="normal" title="+/-">
                                     <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
                                 </state>
@@ -175,10 +164,12 @@
                                 </connections>
                             </button>
                             <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Dlz-OI-x3i">
-                                <rect key="frame" x="280" y="205" width="80" height="80"/>
+                                <rect key="frame" x="192" y="205" width="80" height="80"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" weight="semibold" pointSize="18"/>
-                                <state key="normal" title="%"/>
+                                <fontDescription key="fontDescription" type="system" weight="medium" pointSize="36"/>
+                                <state key="normal" title="%">
+                                    <color key="titleColor" cocoaTouchSystemColor="darkTextColor"/>
+                                </state>
                                 <connections>
                                     <action selector="clickPercentButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="sKA-Mn-mXq"/>
                                 </connections>
@@ -219,6 +210,15 @@
                                     <action selector="clickDivisionButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="JbS-w3-mTU"/>
                                 </connections>
                             </button>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="K66-JV-tKt">
+                                <rect key="frame" x="280" y="205" width="80" height="80"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="22"/>
+                                <state key="normal" title="AC"/>
+                                <connections>
+                                    <action selector="clickAllClearButton:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Ovk-lI-xeN"/>
+                                </connections>
+                            </button>
                             <view contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="hLf-ut-UVB">
                                 <rect key="frame" x="0.0" y="0.0" width="375" height="204"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>