When you see a percetage like 10%, that generally means: 10/100=.10. This percentage sign % means that the number in front of it is "per hundred". So, if you walk into a Bank and the Bank sign says "We pay 5% interest on Savings accounts", that generally means that the Bank will pay you $5.00 for every $100 you have deposited with them, per year. So, if you had $1,000 in your savings account, the Bank would pay interest of 5% as follows: 5/100 X $1,000=.05 X $1,000=$50.00 interest that you would get from the Bank in 1 year. Got it?.