diff --git a/property/box-sizing/index.html b/property/box-sizing/index.html
index 81cd3e7d..cf77a28a 100644
--- a/property/box-sizing/index.html
+++ b/property/box-sizing/index.html
@@ -62,7 +62,7 @@ <h2 class="property-name">
           <p>The <strong>width</strong> and <strong>height</strong> of the element apply to all parts of the element: the <strong>content</strong>, the <strong>padding</strong> and the <strong>borders</strong>.</p>
 <p>For example, this element has</p>
 <ul><li><code>border-width: 12px</code></li><li><code>padding: 30px</code></li><li><code>width: 200px</code></li></ul><p>The <em>full width</em> is <strong>200px</strong>, no matter what.</p>
-<p>The box has the defined width. The content accomodates for those dimensions, and ends up being 200px - 30px - 24px = <strong>146px</strong>.</p>
+<p>The box has the defined width. The content accomodates for those dimensions, and ends up being 200px - 60px - 24px = <strong>116px</strong>.</p>
 
         </div>
       </header>