NEWBIE: Calculating percentages

[spencerbray]

I have a 2GB SD card with a byte size of 1967128576. Given the limitations of 32 bit arithmetic, does anyone know the best what to calulate percentages of this figure.

e.g. 100 / 1967128576 = A very small number which a 32 bit float cannot represent.

Any ideas would be most welcome!

Thanks

[Ttelmah]

It really depends how accurate you want the percentages to be.
If you look at the indicators on a PC for example, they normally only show the value to the nearest percent.
One solution, that is much quicker than fiddling with floats, is just to take your byte count, divide by 196713 in integer arithetmetic, and then print with:

[spencerbray]

Great idea - many thanks!!