Percents are used to calculate tax on EVERY store purchase,and to calculate discounts on every "special" or "bargain".If you can't calculate percents, you can't catch mistakes or avoid being cheated.
It is a problem where you need to calculate percents.
It is 2.2 dollars.
$3.75
5% off 68 is a savings of 3.40 for a sale price of 64.60
Because it's easier for the person doing the shopping to calculate their taxes or discounts.
Increase the exponent by 2.For example,3.45*10-6 = 3.45*10-4 %
20 percents
No one invented percents.
percents are numbers over 100
A waitress need to use percents to calculate his or her tip. Also, it helps to be able to add up the bill correctly.
To calculate it you multiply your cost by 0.94 If the cost is $100, then the price is $94