The secret to doing things like this is easily to scale your math. If you need two decimal places in the range 0-99.99 then just scale so your math produces results between 0-9999 (ie 100 times bigger than you need) and take the last two digits as your decimal places.

Whatever you do must however fit inside a word variable, so the biggest number you can play with is 65535 - therefore with this method to two decimal places, the biggest number you can have is 655.35

Melanie