This document discusses key terms related to percentages: Percentage refers to a portion or share without a percent sign. Rate refers to a percentage with a percent sign and represents the relationship to the base. Base refers to the original or whole amount. The example shows that 20 is 1/5 of 100. This means if you cut 100 into 5 equal parts, each part is 20. The rate R shows the relationship between the percentage P and base B, which can be written as P R B.

2. Percentage-Rate-Base
Percentage (portion, part, or share),
always without a percent sign
Rate or percent, usually with a
percent sign, it is the Percentage IN
RELATION to the Base
Base, the original amount, usually the whole

3. 20 is
1
of 100.
5
Answers:
Percentage: 20
Rate: 1/5
Base: 100
20 20 20 20 20
The sentence means that if you
cut 100 into 5 equal parts, then
each of the 5 parts, or 1/5, is
equal to 20.

4. 20 is
1
of 100.
5
As seen from the previous slide,
1
shows how 20 is RELATED TO to 100.
5
The rate R shows the relationship,
either in fraction form or % form,
of the percentage P to the base B.
We can say that,
P R B
www.yeinstein.com

5. 1. Jessy ate 4 out of the 5 parts of her chocolate bar. This
means she ate 80% of the chocolate bar.
ANSWER
Percentage Rate Base
4 80% 5
2. The interest rate for savings in a bank is 1% per year. When
Anton deposited P1,000 in the bank, his money earned an
interest of P10 in one year.
Base
ANSWER
Percentage Rate
P10 1% P1,000