How to develop an formula with extended table to find the monthly rate of a human resource

[Luu4466]

Good morning to the community

I am working on the file "LucasZ(1).xslx".

I want to display on the tab "MPP 2024 V2 Ph2" from HH59 to HS59 the new monthly rate of a human resource.

The previous formula was for January 2024:
=SOMME.SI('xx RATES xx'!$H$17:$H$93;$GB58;'xx RATES xx'!$L$17:$L$93)*CC58

But the range cell located in the tab "xxRatesxx" is increasing in term of size.

That's why I tried to use this formula:
=SOMME.SI('xx RATES xx'!$H$17:$H$98;$GB58;'xx RATES xx'!$L$17:$L$98)*CC58

But it doesn't work.

Can you help me?

Thank you.