How many people could read and write in London in 1880?

I am working on a SF novel that begins in 1880, London. I am looking for a percentage of people that could read/write in that time. Story starts in Lo

I am working on a SF novel that begins in 1880, London. I am looking for a percentage of people that could read/write in that time. Story starts in London but will move to other areas of country from there.

or:I am working on a SF novel that begins in 1880, London. I am looking for a percentage of people that could read/write in that time. Story starts in London but will move to other areas of country from there.

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