Most efficient way to allow only one number after the decimal
<p>I have a data set returned from yahoo finance api that is formatted like the following:</p>

<pre><code>167.3B
97.719B
1.322B
973.4M
77.8M
</code></pre>

<p>I want to only allow one digit after the decimal. I can think of a number of ways to do it but they all seem somewhat cumbersome. Anyone know a best practice?</p>
