I just started a natural makeup and skincare business that donates fifteen percent of proceeds to charity. The tricky part is that there are five charities to choose from to donate to and at checkout, the buyer selects the charity they would like to donate to. They will probably pay through paypal. I really need help setting this up on my website--there could be the five charities listed, and a "tally chart" basically, so I would know who spent what and where they want to donate their fifteen percent...then I could personally add up the totals every month or so and give to the charities...but there are other ways as well. Please help! Thank you!