Percent Increase & Decrease
Discounts & Original Prices
Tax, Tips & Markups
Commission & Simple Interest
Mixed Word Problems
100
A $40 item increases in price by 15%. What is the increase?
Answer: $6
40 × 0.15 = 6
100
If a $90 jacket is 30% off, how much was is saved?
Answer:$27
$90 × 0.30 = $27 saved
100
A $50 purchase has 8% sales tax. What is the tax?
Answer: $4
$50 × 0.08 = $4 tax
100
A salesperson sells $600 of merchandise and earns 5% commission. How much commission?
Answer: $30
$600 × 0.05 = $30 commission
100
A $75 hoodie is on sale for 20% off. What is the sale price?
Answer: $60
$75(0.20)= $15 off (discount)
$75-15 = $60 sale price
200
A game originally cost $65 and now costs $52. What is the percent decrease?
Answer: 20%:
200
Sneakers cost $84 before a 25% discount. What is the sale price?
Answer: $63:
$84(0.25)= $21 off (discount)
$84-21 = $63 sale price
200
A $72 meal has a 20% tip. What is the total including tip?
Answer: $86.40
$72(0.20) = $14.40 tip
$72 + 14.40 +$86.40 cost with tip
200
A worker earns $350 plus 6% commission on $1,250 in sales. What is total pay?
Answer: $425
$1250(0.06) = $75 commission
$350 + 75 = $425 total pay with commission
200
A family leaves a 18% tip on a $45 dinner bill. What is the total left before tax?
Answer: $53.10
$45(0.18) = $8.10 tip
$45 + 8.10 = $53.10 total with tip
300
A bicycle worth $240 increases in value by 12%. What is its new value?
Answer: $268.80
increase = $240(0.12) = $28.80
new value: $240 + 28.80 = $268.80
300
A backpack sells for $56 after a 20% discount. What was the original price?
Answer: $70
300
A store pays $120 for an item and marks it up 35%. What is the selling price?
Answer: $162
$120(0.35)= $42 mark up
$120 + 42 = $162 selling price
300
$400 earns 3% simple interest annually for 2 years. How much interest is earned?
Answer: $24
I = Prt
I = 400 × 0.03 × 2.
I = $24
300
A store buys headphones for $48 and sells them for $66. What is the percent markup based on cost?
Answer: 37.5%
400
Attendance rose from 320 to 376 students. Find the percent increase.
Answer: 17.5%
400
A coat sells for $102 after a 15% discount. Find the original price.
Answer: $120
400
A $240 chair is discounted 15% and then discounted 30% more. What is the final price before tax?
Answer:$142.80
$240(0.15) = $36 off (discount)
$240 - 36 = $204
$204(0.3) = $61.20 off (discount)
$204 - 61.20 = $142.80 final price
400
An $850 deposit earns 4% simple interest annually for 3 years. What is the account balance?
Answer: $952
I = Prt
I = 850 × 0.04 × 3 = $102
850 + 102 = $952 account balance
400
A car salesman makes $25 per hour and 1% of their total sales. If the salesman worked 40 hours this week and made $129,000 in sales, how much did they earn this week altogether?
Answer: $2290
$25(40) = $1000 hourly pay
$129,000(0.01) = $1,290 commission
Total Pay: $1000 + 1290 = $2290
500
A tablet was originally $180. Its price increased 25%. Weeks later, the tablet decreased by 20%. What is its final price?
Answer: $180
500
A $160 appliance is discounted 15%, then an additional 10% off the reduced price. Find the final price with 5% tax.
Answer $128.52
500
A $320 item is discounted 25%, then a 7.5% sales tax is added. What is the total?
Answer:$258
$320(0.25) = $80 off (discount)
$320 - 80 = $240 sale price
$240(0.075)= $18 tax
$240 + 18 = $258 total after discount and tax
500
A $1,500 investment earns $360 simple interest in 8 years. What is the annual interest rate?
Answer: 3%
500
A $600 computer is discounted 25%, then an additional 10% off the reduced price. Finally, 8% sales tax is added. What is the final total?
$437.40: 600 × 0.75 = 450; 450 × 0.90 = 405; 405 × 1.08 = 437.40.