The Percent Equation/Proportion
Percents of Increase and Decrease
Discounts and Markups
Simple Interest
100

the percent equation in number form


What is a=pw

100

When the original amount increases, it is called a ____________.

What is a percent of increase?

100

a decrease in the original price of an item

What is a discount?

100

the equation for simple interest

What is I=Prt?

200

the percent proportion in number form

What is a/w= p/100?

200

Which number in the formula has to always be in decimal form?

What is the annual interest rate (r)?

300
the formula you use in a percent of decrease

What is original amount-new amount/original amount?

          


300

the increase from what the store pays to the selling price

What is a markup?

400

the percent proportion in words

What is a is p percent of w?

400

the two numbers needed to find an amount paid on a loan

What is the interest and the loan amount?

500

Which part of the proportion is usually followed by the whole?

What is the word of?