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    <p>on the line where is says:</p> <pre><code>totalMessage = "Total = " + total; </code></pre> <p>Try this instead:</p> <pre><code>totalMessage = "Total = " + total.ToString("0.00"); </code></pre> <p>Let me know if that helps.</p> <p>Goodluck</p> <p>=======================================</p> <p>Here is the code I have working on my machine:</p> <pre><code>@{ </code></pre> <p><strong>var total = 0m;</strong></p> <pre><code> var totalMessage = ""; if (IsPost) { var age = Request["frmage"].AsInt(); var weight = Request["frmweight"].AsDecimal(); var SerCre = Request["frmSerCre"].AsDecimal(); var sexfactor = Request["frmGender"].AsBool(); total = Convert.ToDecimal(age*SerCre); totalMessage = "Total = " + total.ToString("0.00"); } } &lt;form method="post"&gt; &lt;p&gt; &lt;label for="text1"&gt;Age:&lt;/label&gt; &lt;input type="text" name="frmAge" size="3" /&gt;Years &lt;/p&gt; &lt;p&gt; &lt;label for="text2"&gt;Weight:&lt;/label&gt; &lt;input type="text" name="frmWeight" /&gt;in Kg (1st = 6.35kg) &lt;/p&gt; &lt;p&gt; &lt;label for="text3"&gt;Serum Creatinine:&lt;/label&gt; &lt;input type="text" name="frmSerCre" /&gt; μmol/L &lt;/p&gt; &lt;p&gt; &lt;label for="text4"&gt;Gender:&lt;/label&gt; &lt;select name="frmGender" id="select"&gt; &lt;option value="M"&gt;Male&lt;/option&gt; &lt;option value="F"&gt;Female&lt;/option&gt; &lt;/select&gt; &lt;/p&gt; &lt;p&gt; &lt;input type="submit" value="Calculate" /&gt;&lt;/p&gt; &lt;/form&gt; &lt;p&gt;@totalMessage&lt;/p&gt; </code></pre>
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    1. POCalculations in forms using razor (including decimals)
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    1. COthat displays a decimal but doesn't let me add them up look below for what I have changed now!
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    2. COWhen you use your 'var' to create variables the compiler? (I think) tries to figure out what the type should be, so when you say: var total = 0 the compiler thinks you want an int, when in fact you want it to be a decimal, you should add an 'm' to the end of the preset value to distinguish it as a decimal.
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    3. COThat's fantastic! that works now just to put the rest of the calcualtions in to make it come up with the right answer! what does the "m" stand for??
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