crosstab total with topcount axe

[saturnz]

hello,

i work with dimensional package
to list top20 stores crossed by their sales in tuple with time analysis (N, N-1 and vs N-1 made in the cube)

i've got a problem with automatic summary for some columns and i don't know why
it's the same kind of kpi
i only change the format in the two last columns, it made a total of % instead of aggregation, i should have 73% instead of 1877
how can i do that ?

please see document attached

thank you