Quarterback Patrick Mahomes gave $5,000 to the Dick’s Sporting Goods Sports Matter program on Giving on Tuesday in 2018. Colin Braley/AP Images for DICK’S Sporting Goods CC BY-SA Some 35 million Americans gave a total of US$2.5 billon on Giving Tuesday to causes of all kinds, including $808 million in donations made online. Donations increased overall by 25% from the total raised during this event in 2019 – the first year when the campaign began to calculate donations made offline, such as by sending a check or giving cash, in addition to online contributions. This good news came as a relief t…