What happens when you donate to a charity at a store checkout?

Question

I’ve seen large corporations brag about donating large sums of money to charity.

Are donations collected at checkout (E.G Checking out at Publix and the cashier asks “Would you like to donate to cancer research?”) included in those sums?

Are donations collected used for tax benefits of the corporation?

In: Economics

Answer 1

Companies get to keep .67 cents of every dollar for operations coast and only give .33 cents to stated charity. (source) Business classes.