How to convert the query into trend

[aditsss]

Hi Everyone,

I have below query.

index="abc*" OR index="xyz*" | eval raw_len=len(_raw) | stats sum(raw_len) as total_bytes by sourcetype |eval MB=total_bytes/pow(1024,2)| stats sum(MB)

I have want to convert it into Trend line for Today.

How can I change my query .

Can someone guide me on that 

As of now its showing sum

[ITWhisperer]

You know how to do trends as you have demonstrated in the past e.g. https://community.splunk.com/t5/Dashboards-Visualizations/How-to-display-total-counts-for-SUCCESS-AN...