How to convert a percentage into a fraction?

I’m trying to convert a percentage into fraction. I know how to do that, but I don’t know how can I achieve it with a script.

local function FracToPerc(n: number)
    return (tonumber(n) or 0)/100
end
local function PercToFrac(n: number)
    return (tonumber(n) or 0) * 100
end

It’s as simple as just reversing the operation to convert a fraction into a percentage.

local function PercToFrac(n: number)
    return (tonumber(n) or 0) * 100
end

PercToFrac(20) -- 2000

It returns me this

That’s because 20 isn’t a percentage, 0.2 is.
If you’re going to use 20 as a value, use FracToPerc.