Use the transaction KE30 and choose the report ZZZ-SOLV01

Enter 

1. the reporting currency = 10
2. the period
3. the company code
4. the plant code
5. the IECRA (when applicable)
6. select : "Classic drilldown report"

To have the detail of the value field D47 Ec/T030 => click on the amount, right click and select "Line items" or click F9

Use the lay out /D47 PPV to have the variance by material code

Explain the main variances

Display the costing of the material with CK13N. 

Enter :

1. The material & plant code
2. The costing variant
3. The validity date

and  

Double click on the amount you want to analyse

Fill you the variance template with your analysis