We recommend that you keep track of the time that you spend on your contingency matters even though you're not charging by the hour.
We suggest that you assign to these matters a billing rate, probably the rate that you most commonly charge on your hourly cases.
Put the matter on Hold. I.e., make its Billing Status #1 an H if you're holding everything on the case or an F if you're just holding Fees while billing Costs.
Set the Billing Status #2 to C (for Contingency). This allows you to easily extract reports limited to these cases should you want to do so.
At the conclusion of the case, that is, when all of the time and costs have been entered and you know what your share of the settlement is, have Legalmaster perform an automatically distributed write-up or write-down. This function allocates the "profit" (or loss) on the case among all of the timekeepers who worked on it based upon the "actual value" of their time.
As a result of all of this, you can determine the profitability of your contingency matters by date, attorney, type of case (if you assigned the case a Case Type), etc. Just run a simple MIRC for Cases report showing, among other things, fee write-ups and write-downs.