increase - date to date

This will need to be handled at the data set level.  So you will need to create these calculations withing a dataflow.

I'm assuming your data is set up to look something like this:

What you need to get is something like this for your graph:

This would take a couple of transforms in MySQL dataflow.

1. sum the daily sales 

SELECT `DATE`, SUM(`SALES`) AS `Total Sales` FROM orig_table GROUP BY `DATE` ORDER BY `DATE`

2. Find the sales for the previous day:

SELECT DATE_ADD(`DATE`, INTERVAL 1 DAY) as `DATE`, `Total Sales` as `Previous Days Sales` FROM `daily_sales`

3. Combine the two tables:

SELECT d.`DATE`, d.`Total Sales`, p.`Previous Days Sales` 
FROM `daily_sales` d 
LEFT JOIN `previous_day` p 
ON d.`DATE`=p.`DATE`
ORDER by d.`DATE`

Then you should be able to make your graph