<p>Hello,<br>
<br><span style="color:#212121;"><span style="font-family:arial, sans-serif;">How can I add a column in a crosstab , with the difference of two columns . </span></span></p>
<p><span style="color:#212121;"><span style="font-family:arial, sans-serif;">Column 1 = 10 </span></span></p>
<p><span style="color:#212121;"><span style="font-family:arial, sans-serif;">Column 2 = 30 </span></span></p>
<p><span style="color:#212121;"><span style="font-family:arial, sans-serif;">Column 3 = 20 </span></span></p>
<p> </p>
<p><span style="color:#212121;"><span style="font-family:arial, sans-serif;">Thanks </span></span></p>
