I wasn't quite sure if you only wanted to compare the new contracts for each client. Since there is no contract ID, I am assuming that you want to compare the first new contract. If so, here is what I have as a suggestion:
And then in a straight table, you can put an expression to compare the first contracts:
I feel like this is not what you are looking for, but I am attaching the qvw which may give you an idea.
You can also take a look at the below threads which I also contributed: