percentage math question

I'm trying to write a script that reduces the player's total money by 10%. I tried the script below but it doesn't work because I can't use floating point variables. How do I make this happen?

plotscript, paragon, begin
set money (party money * 0.90)
end

Could do something like:

plotscript, paragon, begin
setmoney (partymoney--(partymoney/10))
end

I'm not 100% that will perform the order of operations correctly. If not, do something like this:

plotscript, paragon, begin
variable(10pctmoney)
10pctmoney:=(partymoney/10)
setmoney(partymoney--10pctmoney)
end

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By the way, a general method for dealing with percentages in Hamsterspeak that I've used over the years is to work with some variation of "divide by 100 (to get 1 percent), then multiply by the desired percentage". It isn't exact, so it's only useful for some applications where 100% accuracy isn't important, but it generally works:

For instance, you could get 73% money (or some unusual percentage) by that method:

32,742 gold * .73 = 23,901.66 = 23,902

32,742 gold / 100 = 327.42; 327 * 73 = 23,871

Difference of 31 gold, not a terribly significant amount of the total.

I am quite certain, tho, that someone on here will know of a better method than this.

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If you want it to be accurate, just do all division as late as possible, since that will create the rounding. So here, instead of money/100*73, do money*73/100. I'm pretty certain Hamsterspeak can handle big enough numbers to do this now, can't it?

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I am Srime

Yes. Do what msw said and you'll be golden.

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Mega Tact v1.1
Super Penguin Chef
Wizard Blocks

What'd I tell ya?

<-- had to stay up really really late in order to get good grades in math classes ;_;

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SPELLSHARD: THE BLACK CROWN OF HORGOTH now COMPLETE! Grab it today!

Just wanted to jump in and say that variables can't start with numbers. The first character has to be a letter. I discovered this the hard way a few months ago. It shouldn't affect your math issue, though.

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Place Obligatory Signature Here

I ended up with something like this. Thank you for the techniques for using odd percentages as well.

Of course, even "x * 73 / 100" doesn't round to nearest. "(x * 73 + 50) / 100" does, but that's a very minor improvement.