This Sale Chart extension provides an overall sales trend in accumulative amount of current and last month.
Give admin user a quick view of today's sale total, number of orders, number of product sold and new registered customer.

Installation:
Goto Admin page > Extensions> Installer > Upload > sales_chart_v1.0.ocmod.zip
Goto Modification > Click Refresh button
Goto Extensions > Extensions > select Dashboard > Sale Chart >
set Width 12
set Status Enabled

Note:
This extension uses MySQL common table expression or CTE feature which required version 8.0+ to support.
If not, you will encounter following error:
"Fatal error: Uncaught exception 'Exception' with message 'Error: You have an error in your SQL"