91Ó°ÊÓ

Out of 230 racers who started the marathon, 212 completed the race, 14 gave up, and 4 were disqualified. What percentage did not complete the marathon?

Patrick left an \(\$ 8\) tip on a \(\$ 50\) restaurant bill. What percent tip is that?

Ireland has a \(23 \%\) VAT (value-added tax, similar to a sales tax). How much will the VAT be on a purchase of a \(€ 250\) item?

Employees in 2012 paid \(4.2 \%\) of their gross wages towards social security (FICA tax), while employers paid another \(6.2 \% .\) How much will someone earning \(\$ 45,000\) a year pay towards social security out of their gross wages?

A project on Kickstarter.com was aiming to raise \(\$ 15,000\) for a precision coffee press. They ended up with 714 supporters, raising \(557 \%\) of their goal. How much did they raise?

Another project on Kickstarter for an iPad stylus raised \(1,253 \%\) of their goal, raising a total of \(\$ 313,490\) from 7,511 supporters. What was their original goal?

The population of a town increased from 3,250 in 2008 to 4,300 in 2010 . Find the absolute and relative (percent) increase.

The number of CDs sold in 2010 was 114 million, down from 147 million the previous year \(^{6}\). Find the absolute and relative (percent) decrease.

A company wants to decrease their energy use by \(15 \%\). a. If their electric bill is currently \(\$ 2,200\) a month, what will their bill be if they're successful? b. If their next bill is \(\$ 1,700\) a month, were they successful? Why or why not?

A store is hoping an advertising campaign will increase their number of customers by \(30 \%\). They currently have about 80 customers a day. a. How many customers will they have if their campaign is successful? b. If they increase to 120 customers a day, were they successful? Why or why not?