**The Percent Key**

The% key has two functions:

Finding a Percentage grade calculator. In most cases, % divides a number by 100.

The one exception is when a plus or minus sign precedes the number.

(See Adding or Subtracting a Percentage, below.)

For instance, 25 % results in **0.25**.

To find 25% of 200, press: 200 * 25 % =. (Result is **50**.)

Adding or Subtracting a Percentage. You can do this all in one

calculation:

For instance, to decrease 200 by 25%, just enter 200 - 25 % =.

(Result is **150**.)

Example: Calculating Simple Interest. You borrow $1,250 from a

relative, and agree to repay the loan in a year with 7% simple interest.

How much money will you owe?

Keys: Display: Description:

1250 + 7 % Interest on the loan is $87.50.

= **1,337.50** You must repay this amount at the end of one year.