Assigning points based on quartiles (percentiles) according to a grouped virtual table

Good day to all!I have a table with tasks that one or another counterparty (person) performs

My task is:

1. Group the data by counterparty and how many tasks he completed
2. Find the value of 25% 50% 75% percentile in this table
3. Based on the found percentile data, assign your score to the counterparty
   • if the number of tasks is less than 25% percentile- 1 point
   • if the number of tasks is less than 50% percentile- 2 points
   • if the number of tasks is less than 75% percentile- 3 points
   • if the number of tasks is more than 75% percentile- 4 points

I created this measure, I don't understand why it gives 0 everywhere

Points based on the volume of tasks = VAR table1= CALCULATETABLE(GROUPBY('RTO_RegionMountView2',RTO_RegionMountView2[Контрагент],"Counttasks",COUNTAX(CURRENTGROUP(),VALUE('RTO_RegionMountView2'[task]))),FILTER('RTO_RegionMountView2','RTO_RegionMountView2'[Contragent]<>BLANK()))VAR p25 =    PERCENTILEX.INC (table1,[Counttasks],0.25 )VAR p50 =    PERCENTILEX.INC (table1,[Counttasks],0.5 )VAR p75 =    PERCENTILEX.INC (table1,[Counttasks],0.75 )RETURN    IF(SUMX(table1,[Counttasks])<p25,1,IF(SUMX(table1,[Counttasks])<p50,2,IF(SUMX(table1,[Counttasks])<p75,3,IF(SUMX(table1,[Counttasks])>p75,4,0))))

Another very important point is that this measure can be dynamically changed in accordance with these filters in power bi

help to identify the error)))