Answer:
Percentage increase = 269%
Step-by-step explanation:
Price of a DVD last week = $2.87
Price of the same DVD this week = $10.59
Increase in the price of DVD between last week and this week = 10.59 - 2.87
= $7.72
Therefore, percentage increase in the price of DVD = [tex]\frac{\text{Increase in the price}}{\text{Price of DVD last week}}\times 100[/tex]
= [tex]\frac{7.72}{2.87}\times 100[/tex]
= 268.99
= 269%
