Page - Element - Data

Page - Element - Data

Hi, 

Is there a way to take the data from two elements and make a 3rd?

For example, Element takes the value of a table for the last month.  Another Element looks up a price for the month.  The 3rd element I want to multiple Element 1 with Element 2.

Another example is Element 1 is yesterday number and Element 2 is today's number.  I want element 3 to calculate the % increase or decrease between the two.