Modify Pricing Totals for Order Management

Modify Pricing Totals for Order Management
=> Can't add the total cost section
Step reproduced from document:

Manage algorithms

Calculate Sales Totals :

Identify Usage Totals

Compute Simple Totals :

All algorithms are published

Here is the result in a new Order:

We are missing the cost section ‘TOTAL_COST’ and the margin equals the pay now total…

Any idea what we are missing? we followed the documention (link) step by step.

Best Regards

Antonin