One tip could be to post the approximatevalue of the gifts you give to investors who help you raise capital for your venture, that way anything above that figure would be considered a gift.
Operation Compassion says it values goods at the estimated retail price less 40% to approximate wholesale value, which is the usual standard used in the nonprofit world.
The simulation runs forward in time for three weeks in order to approximate the value of having a truck and driver at a certain location at a certain time, and gets a first result.