PCA - Balance Sheet Item in PCA standard reports

Dear all experts,

I am confused by the section in the PCA standard reports: Balance Sheet Item.

What is this and what is the logic behind?

When I select Period 1-12, both values in Balance Sheet Item and Profit Center sections are tally.

But when I select 1 single period, Profit Center section is showing total values for that single period but I could not explain the values under Balance Sheet Item section.

Thanks.

Rgds,

Sebastian