Oh thanks, that workedAre you trying to calculate damage percentage of Max HP?
If so, you could multiply by 100 before dividing.
So Variable 1 = Max HP
Variable 2 = Current HP
Variable 2 * 100
then Variable 2/Variable 1
It will calculate the percentage value without dipping into small decimals as the multiplication is done first.
EDIT: I'm not sure if you meant variables or just formulae for battles...