Ratios & Percentages
Percentages in the Real World Examples
You landed a fabulous summer job working as a sales assistant at Shmacy's. You earn a 4% commission on every sale you make, in addition to your wage of $8.50/hour. After a long seven-hour shift, your sales totaled $1250. What are your total earnings for that shift?
The Sports Shmauthority is having an amazing sale on all of their winter gear, 65% off the regular price. You find the snowboarding jacket that you have been wanting for the past year. It was $220 before the sale. How much is it now?
All sweaters are 30% off of the original price. You, being the clever shopper you are, also have a coupon for 15% off any item, including sale items. How much does a $75 sweater cost?
Sales tax in the state of California is 9.25%. After shopping at a Shmarget in Laguna Beach, your purchases came to $62.75, before tax. How much do you end up paying, including tax?
Sweet! Jeans at American Shmeagle are 40% off. How much will you pay for a pair of jeans that were originally $80? (don't forget the 9.25% sales tax)
Look Out: always calculate the discount before adding in the sales tax
You invest $200 in a savings account that earns 4% interest each year. If you do not touch the account for three years, how much money will you have in your account after those three years?
After a particularly nice lunch, your bill comes to $44.75. You and your two friends split the bill equally. How much do you each owe? (Don't forget to add in a 20% tip!)