Good post mate! I use percentages in my everyday and this has been very usefull because I just started in forex trading and I work with this a lot. If you're interested in trading, check out this website here and maybe you'll get started in this just like me! In that site you can also find some good reviews on forex brokers check them out!

You calculate it the same way you calculate percent when dealing with any number. "Money" is just a number that has a currency symbol associated with it.

Sometimes a question of this sort will arise because there is confusion about how to calculate percentages. A percentage is just a number with the decimal point moved over 2 places.

__Example__10%*20.00 = 2.00 10%*$20.00 = $2.00Sometimes a question of this sort will arise because there is confusion about how to calculate percentages. A percentage is just a number with the decimal point moved over 2 places.

__Examples__15.% = 15/100 = .15 14.2% = 14.2/100 = 142/1000 = .142 (note the decimal point is 2 places left of where it was, and the % sign has been removed) Often, you want to add or subtract a percentage of a price. You can use the above knowledge to do that a couple of ways.__Examples__(sale price) = (original price) - discount*(original price) (sale price) = $20.00 - 10%*$20.00 = $20.00 - 0.10*$20.00 = $20.00 - $2.00 = $18.00 Alternatively, we can factor out the original price to get (sale price) = (original price)*(1 - discount) = $20.00*(1 - 10%) = $20.00*(1 - 0.10) = $20.00*(0.90) = $18.00 (total bill) = (item price) + (sales tax)*(item price) (total bill) = $20 + 9%*$20 = $20 + .09*$20 = $20 + $1.80 = $21.80 Alternatively, we can factor out the item price to get (total bill) = (item price)*(1 + (sales tax)) = $20*(1 + 9%) = $20*(1 + .09) = $20*(1.09) = $21.80