ORA-00934: group function is not allowed here

Hi,

On 19c, when running:

select TABLESPACE_NAME, sum(bytes/(1024*1024)) , sum(maxbytes/(1024*1024)) ,  

round((sum(bytes/(1024*1024))/sum(maxbytes/(1024*1024)))*100) Pourcent_occupe from dba_data_files where autoextensible='YES' 

AND ( round((sum(bytes/(1024*1024))/sum(maxbytes/(1024*1024)))*100) > 0.80)

 group by TABLESPACE_NAME;

I have:

ORA-00934: group function is not allowed here

00934. 00000 - "group function is not allowed here"

*Cause:   

*Action:

Error at Line: 3 Column: 14

Thanks for your help.