Measure value changes with slicer value

Good Morning,

I created a measure who is divided by the amount total of rows, but i want this value to change when slicer are applied .

example :  without any slicers applied i have 6000 as a total, but when i use one of mine slicer i have an amount equals to 603, so i would like to have my formula divided by 603 and no 6000 .

Here you have my formula : 

Total_of_auth_>15_porcent = ((COUNTX(FILTER(RELATEDTABLE(Query1);[Duration_in_days]>15);Query1[Duration_in_days])) / COUNTX(KEEPFILTERS(Query1);[AMS_CODE])  )

I tried to use the option keepfilter to see if the value change but it does not work .

Here you have a link to see my screen capture :

[URL=https://www.hostingpics.net/viewer.php?id=952890power1.png]

URL=https://www.hostingpics.net/viewer.php?id=998307power2.png] 

Thanks you for your time and help. 

Caradryan