The PS Application provides reports that shows the financial indicators are project level (WBS Element).
The Financial Indicators include :

Access to the "PS - Project Costs" Application has to be requested (See Getting an account).
Access is managed at 2 levels, which you will need to precise when requesting the access :
Currently the WBP PS Application only contains data coming from the RCS System, so only the legal entities managed in WP1 SAP system will be included in this report.
The data is updated daily around ~4 am Paris Time.
All the queries for the PS Application can be found in the role "PS - Project Costs" (ZR_RCS_CA_M09) :

Here are the links to the detailed query documentations :
"PEC" is the acronym for the french name "Prise En Charge", which translates into "Bearing of the costs". Meaning the Actual Costs of all goods/services received.
The "PEC" was used for Rhodia Legacy. It is replaced by the wording "Capital Spend".
CAPEX stands for Capital Expenditure. It is equal to the CASH (Out) when filtering on investments only.
CASH is short for "Cash Out", meaning the amount that has been paid (or received for invoicing WBS). It includes both "CAPEX" (Investment Cash Out" and "OTC" (One Time Costs - Non-investment cash out).