Donation percentage

Is it correct that masjidbox.com get 10% contribution?

A donation was made for my mosque. How does it actually work?let's take the example of a donor who decided to donate 10€ to the mosque with a 1€ contribution to Masjidbox. The donor paid a total amount of 11€. Stripe's fees are 0.57€ and therefore your mosque will receive a donation of 9.43€. (calculation based on April 2020 rates