IBM Cognos Chart Replica in Qlik getting Complex

[#1]

Dear Qlik Team, We have one chart in IBM cognos showing output like below -

It shows A/B as percentage

A (Current Assets)= (Opening Balance of Specific Ledger + Cumulative Transaction in a year till specified month)

B (Sale)= Cumulative Sales for Last 12 Months

In Qlik Sense,

1- For calculating A, I am getting correct values against month dimension after selecting specific Year with below formula -

          Sum({$<[Level 10]={"Local","Export","Government"}>}Openingb) +

          rangesum(above( TOTAL Sum({$<[Level 10]={"Local","Export","Government"}>}Ballance1), 0, rowno(Total)))

2- For Calculating B, I am getting correct values against Year-Month Dimension with below formula -

          rangesum(above( TOTAL Sum({1<PD1 = {Sales}>}Actual), 0, 12))

Now Problem -

1- Current Assets always totals within specific Year so I cant use Year-Month  dimension to finally divide it to last 12 months sales in a single chart.

2- For last 12 months sales, I must use Year-Month dimension for rangesum funtion.

3- Rangesum makes the chart static (If i choose any dimension values are incorrect) which i don't want, as in Cognos it is dynamic, user can choose any specific month and gets the A/B %.

Can you please help to get rid of it, i need to join below two charts into one under one dimension as month or year.

In below snapshot for month 2, I want 46.46/194.11 = 23.93 % in final chart