User:Thom robinson/sandbox

Since banks have reduced interest rates to less than per cents they use .000 or .0000 most often described as .0% and .00% which tends to be confusing as well as redundant and actually appears to seem larger some how. I would like to use the correct idiom for numbers less than a per cent. Not just 1/10000th but the actual English word. In that per cent is to .00 as ? is to .000 and/or .0000. I am certain the words exist I just am unable to find them. Thanks and good luck.