It is straightforward.
You only put 'Qron Calc Macro' on the Confluence standard table, then enter a formula in the macro body.
And also, you can set numeric format, text alignment, and text style optionally.
Given a formula "sum(b1:b5)" and a format for the accounting section and an emphasized style will be displayed like the following.
Qron Calc Macro Playground is a Live example.
They run on the cloud version. So there are slight differences with the Data Center version. The Data Center version is more straightforward than the cloud version.