Show HN: A lightweight percentage calculator to query in human language

I heard about a friend of mine complaining he couldn't get the right percentage value out of his phone's calculator, while working in a patisserie.

He doesn't get how to compute percentages.

Thus I coded a little (nice?) one, targeted for his phone with very low resolution/crappy display.

Maybe someone might find it useful (though I don't think so, really)

Needs to strip % symbols from the input.