Projected Donation

My devious friend decided to do some checking to see how much donation Alexandra Grant has made to ProjectAngelFood selling her overpriced love in a cage printing. On her grantloveproject post, she indicated that for each print sold, $93.75 are donated to ProjectAngelfood. Her website indicated that 100 prints are available for each color (plus 20 AP, which are artist proof and are produced for the artist to keep and use at exhibition and not part of the sale). We test it out by requesting to buy 100 prints and at check out, it tells us how many are left. Based on that, we can calculate how many have been sold, 10 from the pink, 13 from the blue, 8 from red, 3 from yellow. 34 x 93.75 = 3,187.50 

For the set collection, 5 prints were sold. I’m not very good with math so help me with this part, each set sold should be multiple by 4, right for donation? Should be $93.75 X 4 X 5 = 1,875.
Not saying this is 100% accurate but if this logic is correct, Grant has donated $5,062.50 to PAF. But remember, she’s donating the profit, she is still getting money back to pay herself for printing it at $56.25 per print. Really, it cost $56.25 for each print?