Zoho Creator and Zoho Reports **COSTS**

Zoho Creator and Zoho Reports **COSTS**

HI,

I am writing an application that has data entry (from my Customers) and Reporting (graph).

Each Customer has to edit/see his own data and has to view a Report (graph) based on his own records.
 
The input form is quite elaborate and I need deluge/scripts.

In order to let each Customer to edit/see his own data I need Customer Portal feature in Zoho Creator. RIGHT?

In order to let each Customer to iew a Report (graph) based on his own records I need to pass parameters to a Report  in Zoho Reports. RIGHT?

Let say I have 14 Customers (15 users = 14+me). 

Zoho Creator costs= 99$ (customer portal)+225$ (15$x15 users)= 324$.
Zoho Reports costs ?

please help me in understanding the global architecture and costs.

Tks,

Pippo