Why isn't my form calculating properly?

and, also, My form isn't calculating properly, I want it to calculate (as
pictured) but it put the total of the frequency amount x the hours (say
$70) and the total of the additional services (say $30) and gives me a
total of $7030 instead of adding the 70 + 30 to =$100

May you please confirm this happens on the form http://www.jotform.ca/form/80837730084257? 

If not, please  provide us the form where the issue is present, you may also provide us some images about the issue, please kindly follow the guide below as the forum does not accept images via email responses: https://www.jotform.com/help/438-How-to-Post-Screenshots-to-Our-Support-Forum 

We will wait for your response.