Invoice Revenue Recognition concept in R12

Good Evening !!!

We are using  R12.1.3

We have below requirement

in Jan 20 We are generating invoice  for 10000 ( Imported from Projects Module)

In the month of Jan 20 - we need to  10% this amount 1000 to be recognized as revenue.

In the month of  Feb 20  we need  15% this amount 1500 to be recognized as revenue

In the month of  Mar 20 we need  20% this amount  2000 to be recognized as revenue

Keep do every month- till reach 100% or  balance amount in a particular month  ( in case the project is completed)

Can  someone  guide the correct standard  steps in AR

Thanks