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This seems silly.

How much does this save the government as a percentage of total spending?

How much will this cost the government vs. how much it saves?

How much will this cost businesses in the US in total compared to the amount saved by the government?

How much will this increase costs to consumers, given that businesses will (barring legislation) inevitably round up to the nearest $0.05?

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It's not silly and is logical. Businesses and consumers will not be worse off. In 1978, the CPI was roughly a fifth of what it is now, and no one was complaining there wasn't a smaller denomination coin than the penny. Cash purchases as a percentage continue to decline.

It's not even worth your time to pick up a penny off the ground.

> Businesses and consumers will not be worse off.

What’s your calculation?

The costs aren’t zero. Businesses will need to re-tool. Consumers will spend more because purchases will be rounded up to the nearest nickel.

What’s going to offset those costs?

Register systems like Toast, Square, Shopify, etc. will have to issue a software update that rounds cash transactions to the nearest 5c. It will certainly be a cost, but not an very large one, and no business is likely to see it as a line item on their P&L beyond what they already pay to their POS vendor.

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