For those that work retail checkout, on average, what percentage of people pay with a card vs cash?

I've been asking gas stations out of curiosity and I was shocked that some say it's as high as 50-50. They say one of the main reasons is a lot of people get cash jobs. I asked at my grocery store and they said it's around 75% that pay with a card. I'm sure location can make a difference also.

For those that work retail checkout, on average, what percentage of people pay with a card vs cash?
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