I have a number of assets, that I own a portion of, attached. Each asset has an individual annual probability of loss. However, the whole group is split into 3 equal dollar parts. If there is a loss to one of the assets, losses will will be allocated first to part 3 until part 3 is reduced to zero, second to part 2 until part 2 is reduced to zero, then third to part 1 until part 1 is reduced to zero.

How do I calculate the annual expected loss of each part?

Thank you