So that you can verify just where your donation is going, you can always find the cost breakdown for every classroom project directly on the project page.
Here's how we break it down. When a teacher's project is screened, we first verify that the materials are priced correctly. In addition to the materials cost, the cost of a project includes shipping, fulfillment and labor costs, and credit card processing fees. A separately listed and optional donation is also included in the final project price tag. (While each individual donor is not obligated to include this optional donation at checkout, we'd love for you to consider doing so to support our work and operations!)
On rare occasions, the cost of the materials may change between the time a classroom project is screened and when it is funded. (This can be caused by a change in pricing or a need to use an alternate supplier from which to acquire the materials.) If the cost of materials increases, DonorsChoose.org will pay the difference out of its operating funds. If the cost of materials is lower, DonorsChoose.org places the savings in a restricted fund that is used to fund additional classroom projects.