Here are some information regarding the donation.
http://www.nerdwallet.com/blog/nonprofits/donate-charities-corporations/
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Gateway Transaction Fee |
Merchant Transaction Fee |
Merchant VISA/Master Rate |
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| Commerce Guys | Authorize.net | $17.95 | $9.95 | $0.10 | $0.25 | 2.19% | $25 |