MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
Write 61% as a decimal.
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
Write the decimal 7.65 as a percent.
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
1
Write
as a percent.
16
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
What is 20% of 360?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
What is 20% of 360?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
40 is what percent of 160?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
40 is what percent of 160?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
44.55 is 24.75% of what number?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
44.55 is 24.75% of what number?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A husband bought a diamond ring for his
famous wife for $35,000. Years later, the ring
sold at auction for $12,008,400. The auction
price was what percent of the original price?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A husband bought a diamond ring for his
famous wife for $35,000. Years later, the ring
sold at auction for $12,008,400. The auction
price was what percent of the original price?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
The 2005 sales (in thousands of dollars) of the top
5 products of a company are given in this table.
(a) What percent of the sales of these 5 products
was due to product B (to nearest hundredth)?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
The 2005 sales (in thousands of dollars) of the top
5 products of a company are given in this table.
(a) What percent of the sales of these 5 products
was due to product B (to nearest hundredth)?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
The 2005 sales (in thousands of dollars) of the top
5 products of a company are given in this table.
(b) What percent greater were sales of Product B
than Product E (to nearest hundredth)?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
The 2005 sales (in thousands of dollars) of the top
5 products of a company are given in this table.
(b) What percent greater were sales of Product B
than Product E (to nearest hundredth)?
𝑷𝑬𝑹𝑪𝑬𝑵𝑻 𝑵𝑬𝑾 𝒂𝒎𝒕 − 𝑩𝑨𝑺𝑬 𝒂𝒎𝒕
=
𝑪𝑯𝑨𝑵𝑮𝑬
𝑩𝑨𝑺𝑬 𝒂𝒎𝒕
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A company found that in 2009, downloaded music album sales
were 524% of what they were in 2005. If 10.9 million albums
were downloaded in 2005, how many were downloaded in 2009
(rounded to one decimal place)?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A company found that in 2009, downloaded music album sales
were 524% of what they were in 2005. If 10.9 million albums
were downloaded in 2005, how many were downloaded in 2009
(rounded to one decimal place)?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A person earns $25,900 one year and gets a 5% raise in salary.
What is the new salary?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A person earns $25,900 one year and gets a 5% raise in salary.
What is the new salary?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A mutual fund dropped in value by 30% from last year to this year.
If the fund is now worth $10,780, how much was the fund worth
last year?
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A mutual fund dropped in value by 30% from last year to this year.
If the fund is now worth $10,780, how much was the fund worth
last year?
PERCENT x BASE = AMOUNT
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A motorcycle manufacturer expects to build 137,000
motorcycles this year, up from 126,000 last year.
Find the percent of increase in production (to one decimal place).
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
A motorcycle manufacturer expects to build 137,000
motorcycles this year, up from 126,000 last year.
Find the percent of increase in production (to one decimal place).
𝑷𝑬𝑹𝑪𝑬𝑵𝑻 𝑵𝑬𝑾 𝒂𝒎𝒕 − 𝑩𝑨𝑺𝑬 𝒂𝒎𝒕
=
𝑪𝑯𝑨𝑵𝑮𝑬
𝑩𝑨𝑺𝑬 𝒂𝒎𝒕
MATH 110 Sec 8-1: Percent, Taxes & Inflation
Practice Exercises
Use the table below to calculate the federal income tax due for a
taxable income of $320,000.