Okay, that title is awkward, but hopefully the question won't be. See my earlier question for some context, if interested.
So if if I'm trying to get 1/3 of a number (let's say 99) with only the option of multiplying the target number by .(3), is there an equation or function to know how many repetitions is enough such that "tying off" the number with the next highest number (in this case, .34 or .334, etc), will equal 1/3 of the target number if rounding down eg
< 1/3 target number + .44
.44 to account for any ceiling-happy rounders out there.
I know it's not a set number for repetitions, but with following test:
9 * .4 = 3.6 | 9 * .34 = 3.06 99 * .34 = 33.66 | 99 * .334 = 33.066 999 *.334 = 333.666 | 999 * .3334 = 333.0666
there is a clear correlation between the size of the target number and the number of repetitions. But I know that this isn't the most definitive test, obviously.