colour by expression in map-qlik sense

[#1]

Hi,

I am using qliks sense map (area map)in my App. the requirement is to  color- different area of map on the basis of measures.

-maximum employees who have completed the course should be green.

-employees count between maximum and 100 should be yellow/orange

-and employee count less that 100 should be red.

I have used color by expression with formulae. can you help in achieving above by tweaking this one.

if(count({<[Course User Status]={'Completed'}>}DISTINCT([EmployeeID]))>200,Green()

Dimension: region name
Measure: employeeid(count({<[Course User Status]={'Completed'}>}DISTINCT([EmployeeID])