Sum of 3 months of Measure to show as quarter value

[KHK]

Hi , I have below requirement

If one customer have revenue for three months like Jan,Feb.Mar(Q1).

Jan=100

Feb=20

Mar=30

Sum of Jan +Feb+Mar=150

This 150 value show in separate column to show 3 times in the report as below.

I want to calculate the Ratio by dividing sum of  revenue of quarter/Revenue.

Please let me know how to achieve.