https://www.businesswire.com/news/home/20180130005244/en/New...
>New Research from IHL Group Shows Retailers’ Cash-handling Costs Range from 4.7% to 15.3%, Depending on Retail Segment
Loss from theft is a huge deal as well, there was a coffee shop in Baltimore that went cash-free because they were getting robbed so much.
https://baltimore.cbslocal.com/2017/02/02/cashless-coffee-sh...