If due to any reason you get stuck with any party and you are going to file a case against that party, in that case you need to collect all the details as facts and figures to claim in the form of a statement of claims.
For filing a statement of purpose, you need to give all the details of the dispute and these facts and figures would be considered in the court proceedings.
It also tells what kind of solution you want after the settlement of the proceedings.
Here you also mentions the purpose of the damage and you will have to mention how you calculated the amount you have claimed in the statement of claims.
Statement of claims also gives an opportunity to the other side to respond on the issue. As discussed above, it is a legal proceeding taken by the bearer who has faced this loss against that party which is the reason for damages or loss.